| Geneva Study Bible And God said, Let there be a firmament in the midst of the waters, and let it divide the waters from the waters. Wesley's Notes 1:6-8 We have here an account of the second day's work, the creation of the firmament. In which observe,
1. The command of God; Let there be a firmament - An expansion; so the Hebrew word signifies, like a sheet spread, or a curtain drawn out. This includes all that is visible above the earth, between it and the third heavens, the air, its higher, middle, and lower region, the celestial globe, and all the orbs of light above; it reaches as high as the place where the stars are fixed, for that is called here the firmament of heaven, Ge 1:14,15, and as low as the place where the birds fly for that also is called the firmament of heaven, Ge 1:20.
2. The creation of it: and God made the firmament.
3. The design of it; to divide the waters from the waters - That is, to distinguish between the waters that are wrapt up in the clouds, and those that cover the sea; the waters in the air, and those in the earth.
4. The naming it; He called the firmament Heaven - 'Tis the visible heaven, the pavement of the holy city. The height of the heavens should mind us of God's supremacy, and the infinite distance that is between us and him; the brightness of the heavens, and their purity, should mind us of his majesty, and perfect holiness; the vastness of the heavens, and their encompassing the earth, and influence upon it, should mind us of his immensity and universal providence. King James Translators' Notes firmament: Heb. expansion Scofield Reference Notes The second day: vapor above, water below Margin firmament Lit. expanse (i.e. of waters beneath, of vapour above). Jamieson-Fausset-Brown Bible Commentary Ge 1:6-8. Second Day. 6. firmament-an expanse-a beating out as a plate of metal: a name given to the atmosphere from its appearing to an observer to be the vault of heaven, supporting the weight of the watery clouds. By the creation of an atmosphere, the lighter parts of the waters which overspread the earth's surface were drawn up and suspended in the visible heavens, while the larger and heavier mass remained below. The air was thus "in the midst of the waters," that is, separated them; and this being the apparent use of it, is the only one mentioned, although the atmosphere serves other uses, as a medium of life and light. Matthew Henry's Concise Commentary 1:6-13 The earth was emptiness, but by a word spoken, it became full of God's riches, and his they are still. Though the use of them is allowed to man, they are from God, and to his service and honour they must be used. The earth, at his command, brings forth grass, herbs, and fruits. God must have the glory of all the benefit we receive from the produce of the earth. If we have, through grace, an interest in Him who is the Fountain, we may rejoice in him when the streams of temporal mercies are dried up. | 
