> [!Scripture] > **6 Then God said, "Let there be an expanse in the midst of the waters, and let it separate the waters from the waters." > 7 God made the expanse, and separated the waters which were below the expanse from the waters which were above the expanse; and it was so. > 8 God called the expanse heaven. And there was evening and there was morning, a second day.** <img src="https://audio.mhbbible.com/media%3Agenesis%201%206-8%20.jpg" alt="Genesis 1:6-8" style="max-width: 100%; height: auto;"> > [!success] Audio Commentary > <audio controls src="https://audio.mhbbible.com/Genesis%201%206-8.ogg"></audio> ## Brief Observations - **The firmament is far more than just the sky** — It is the vast expanse God named “heaven” on day 2. It includes the Earth’s atmosphere (our shield and breath) and the cosmic realm of stars, planets, galaxies—the whole visible heavens we look up into. + **The atmosphere is a stunning example of God’s common grace** — It protects every person (righteous and wicked alike) from deadly radiation, regulates temperature, powers the water cycle, and gives us air to breathe. No one earned this gift; it is freely given, sustained moment by moment by God’s kindness. - **The cosmos reveals God’s grandeur like nothing else** — The sheer scale of the universe, the mathematical precision of our solar system, the fine-tuning required for life on Earth—all of it shouts the omnipotence and omniscient wisdom of the Creator. Scripture says the heavens are the work of His fingers. + **The firmament is not a barrier between us and God** — It is an intermediate structure, a medium of communication. When we pray, when we ponder eternity, when we feel awe, we instinctively look up. The stars and sky refract something of the spiritual realm and the throne of the Most High. - **Even the universe is not eternal** — It was spoken into being by God’s word. No matter how ancient or vast it appears, it is created, contingent, and utterly dependent on Him. This truth crushes any temptation to treat the cosmos as self-existent or divine. + **Everything good in us is created by God too** — Just as the heavens were formed by His word, so our faith, love, holiness, and obedience are worked in us by His grace. We generate none of it ourselves. The best parts of you are not self-made—they are given, so that God alone gets the glory. - **The separation of waters above and below shows God’s direct sovereignty over the water cycle** — He waters the mountains from His upper chambers. Rain, dew, and rivers come from His hand, not human effort. When God withholds rain, no technology can ultimately save us. + **Rain from heaven was a mark of the Promised Land** — Canaan was superior to Egypt because it drank directly from God’s regular showers rather than depending on fragile human irrigation. God’s providence is more reliable, more gracious, and less vulnerable to corruption than anything we build. - **Human systems are always downstream from God’s** — Crops need sunlight we cannot control. Irrigation needs rain we cannot manufacture. Every link in the chain of life traces back to the One who upholds the constants and waters the earth. + **God uses weather and the cosmos for both mercy and judgment** — He reserves storehouses of snow and hail for the day of battle. The same sovereignty that comforts His people brings fear to those who defy Him. - **God named the firmament “heaven”** — It is the visible part of heaven we can see. His throne is above it. The title “Most High” declares His unreachable location and absolute rule over every realm, including human kingdoms. + **No earthly power escapes the Most High** — Nebuchadnezzar’s dream and Lucifer’s fall both show that the greatest kings and the highest angels are humbled when they forget that Heaven rules. The firmament’s heights remind us: God is supreme, and no one can ascend to His place apart from Christ. - **The firmament calls us to awe, humility, and trust** — The shining stars reflect His perfect holiness. The vast expanse reveals His unlimited power. The fact that it surrounds and protects the Earth declares His universal providence. He is everywhere, sovereign over everything, and worthy of all praise. ## Full Commentary An important part of the firmament is the Earth’s atmosphere — without which the planet would not be able to sustain life. The atmosphere protects us from radiation, regulates the water cycle, covers us in livable temperatures, and provides breathable air. Our atmosphere is finely tuned to support life. It’s one of the best examples of God’s common grace, as He has given it to protect both the righteous and the wicked and neither have earned it. Although the atmosphere is an important part, when the Bible uses the term “firmament” it’s also referring to the expanse of the cosmos itself. The firmament is everything you see when you look up. It includes outer space which is occupied by stars, planets, and other heavenly bodies. It also includes the sky which is underneath the Earth’s atmosphere — the place where the clouds form and the birds fly. For as long as humanity has walked the Earth we’ve been fascinated by the cosmos. It presents a frontier of untrodden expedition underneath which human beings have aligned their ambitions for millennia. We’ve spent huge sums of money and assembled the most brilliant minds in our efforts to reach the stars. Of all the majestic things God has created, perhaps none of them so magnificently reflect His grandeur like the vast expanse of the cosmos. In this way, the firmament has always functioned as something of a communication medium between the physical realm and the spiritual realm. When we talk to God and when we muse on the mysteries of eternity, we have a tendency to look up. Although the atmosphere functions as a shield or barrier against harsh physical forces, the firmament was never a partition between ourselves and God — rather it is more like an intermediate structure. We are not prohibited from traversing it as technology affords us the opportunity. Notice how the scripture is careful to specifically point out God is the One who created the firmament. Since the cosmos is so grand and — depending on who you ask — so old, it’s easy for us to mistake it as being eternal. But even something as incomprehensible as the universe was spoken into existence by the power of God’s word. The scripture is careful to point this out as a reminder that anything God requires of us — be it works, faith, love, or holiness — He Himself creates in us. God works it within us or else it is not done. These things are created for us and enabled within us by the power of God’s grace so that He alone may be praised because of them. Your faith and your love is no more the consequence of your own creative efforts than is the cosmos itself. The best parts of you are not self-generated, they are given to you by God. Remembering this truth is indispensable for promoting one’s humility and gratitude. Scripture says the cosmos (including the moon, the stars, and the planets) is the work of God’s fingers. The expression of God’s omnipotent power is revealed in the vastness of the universe. The expression of God’s omniscient wisdom is revealed in the fine tuning of the bodies which occupy it — most notably our own planet Earth. Our solar system is constructed with such mathematical precision that even singular miscalculations in the physical constant would topple the entire enterprise. It is a work of art of the highest order. But like we said, the part of the firmament which bears the most immediate importance for ourselves is the Earth’s atmosphere. The water cycle is presented in these verses where it reads, “God made the expanse, and separated the waters which were below the expanse from the waters which were above the expanse; and it was so.” Well-watered, fertile land was considered a grace of God during these times. It still is a grace of God, but we’re just protected against droughts and desolation by the workings of our technological infrastructure. If God ceased His providence of rain across the entire planet, even our advanced networks of food growth and distribution would not be able to sustain themselves. One of the primary reasons Canaan was considered the Promised Land and more desirable than Egypt was because Canaan received regular rain whereas Egypt needed irrigation for crop development. An ecosystem supported by a climate with sufficient rain was better than systems of irrigation because you didn’t have to work as hard for it and it couldn’t be as easily destroyed by your enemies. Also the regularity of rain isn’t dependent on the behavior of men — God is going to provide rain whether men are behaving properly or not. Unlike God’s providence of rain, man-made irrigation systems might start to deteriorate under corrupt leadership who abuse resources rather than maintaining the infrastructure. You might remember hurricane Katrina. The reason Katrina was so devastating wasn’t because of the power of the hurricane. It was a category 3 storm when it made landfall. The reason it killed nearly 1,400 people and cost $125 billion in damage is because the levees broke. State and local leadership had misappropriated funds meant to maintain New Orleans’ system of levees. This financial corruption resulted in deferred maintenance and ultimately a failure which caused 80% of the city to be submerged in floodwaters. So even with natural disasters which are commonly considered beyond our control, it’s hard to separate the influence of human corruption and its impact on making outcomes worse than they need to be. This is why a water-system based entirely on human endeavor was less desirable than one based on the providence of God. Scripture says the dew and the showers of the Lord do not delay for the sons of men. God upholds the physical constant and ecological systems like the water cycle with exclusive, direct sovereignty. Psalm 104:13 says, “He waters the mountains from His upper chambers; The earth is satisfied with the fruit of His works.” All of humanity could be gone tomorrow and these systems would continue uninterrupted for as long as God sees fit. In addition to these God-maintained systems being beyond our control, they also make up the foundation upon which our own systems depend. The crops we plant cannot grow without photosynthesis, and we have no control over the sun. The irrigation systems we dig cannot provide water unless somewhere else God is giving the rain to replenish the ground. Psalm 65:9 says, “You visit the earth and cause it to overflow; You greatly enrich it; The stream of God is full of water; You prepare their grain, for thus You prepare the earth.” In virtually every dimension of your experience, you can trace the causal chain back to God who is the giver and sustainer of all life. God not only uses the weather for acts of providence, but He also uses it as He shapes the course of history. When Job questions the sovereignty of God, part of God’s response is to challenge him: “"Have you entered the storehouses of the snow, Or have you seen the storehouses of the hail, which I have reserved for the time of distress, For the day of war and battle?” God uses His control over the universe for the comfort of those who serve Him, and for the destruction of those who defy Him. God’s omnipotence should bring peace into the minds of those who love Him and fear into the hearts of those who hate Him. In this passage we read God name the firmament “heaven.” Remember we said the firmament is like an intersection between the spiritual realm and the physical realm. It’s like the only part of heaven we can see at this moment. Scripture says God’s throne is located above the firmament. So that intuition you feel to look up at the night sky when praying or communing with God is not by accident. God actually is in the height of heaven, which is not to say He’s in outer space, rather that outer space gives us a kind of refraction of the heaven He occupies. One of God’s titles in scripture is “Most High” and this title represents both God’s unreachable location as well as is comprehensive sovereignty over all things. There is a figure in Isaiah chapter 14, who is traditionally understood to be Lucifer before his fall from heaven, who specifically uses this title “Most High” when he aspires to put himself on God’s throne. The passage opens with a reflection on Satan’s fall: "How you have fallen from heaven, O star of the morning, son of the dawn! You have been cut down to the earth, You who have weakened the nations! "But you said in your heart, 'I will ascend to heaven; I will raise my throne above the stars of God, And I will sit on the mount of assembly In the recesses of the north. 'I will ascend above the heights of the clouds; I will make myself like the Most High.' God’s title Most High is meant to remind us that despite how powerful human governments and human leaders can seem — none of them escape the sovereignty of God. Another notable instance in scripture where we see the title Most High used is when Daniel interprets Nebuchadnezzar’s dream. The Babylonian king Nebuchadnezzar had become one of the most powerful kings on the planet. He was given a dream in which a great tree grew to the heights of the sky and could be seen all over the Earth. Then an angel of Heaven descended and called for the tree to be chopped down. Daniel explained how the great tree represented Nebuchadnezzar and his power. In regard to the dream Daniel tells him, “This is the interpretation, O king, and this is the decree of the Most High, which has come upon my lord the king: that you be driven away from mankind and your dwelling place be with the animals of the field, and you be given grass to eat like cattle and be drenched with the dew of heaven; and seven periods of time will pass over you, until you recognize that the Most High is ruler over the realm of mankind and bestows it on whomever He wishes. And in that it was commanded to leave the stump with the roots of the tree, your kingdom will remain as yours after you recognize that _it is_ Heaven _that_ rules. The unreachable heights of heaven, as represented in the heights of the firmament itself, should remind us of God’s supremacy and the impassable divide between us and the Father without Jesus Christ. The clean, bright shining of the stars on a clear night reminds us of God’s glory, majesty, and perfect holiness. The incomprehensible, expansive vastness of the universe reminds us of God’s unlimited power and reach. The fact that the firmament encompasses the Earth calls us to remembrance of God’s universal providence in all things. He is everywhere and He is in control of everything.