6 Then God said, "Let there be a space between the waters, to separate the waters of the heavens from the waters of the earth." 7 And that is what happened. God made this space to separate the waters of the earth from the waters of the heavens. 8 God called the space "sky." And evening passed and morning came, marking the second day.
Matthew Henry's Commentary on Genesis 1:6-8
Commentary on Genesis 1:6-13
(Read Genesis 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.