God is a careful engineer, the greatest artist and architect. It is no surprise that the Earth's system is perfectly suited to its inhabitants; this was all part of God's plan. The Bible begins with an account of God's creation of the earth. "In the beginning, when God created the heavens and the earth, the earth was a formless void and darkness covered the face of the deep, while a wind from God swept over the face of the waters." (Genesis 1:1-2) The first day, God created light and dark. On the second, He separated the heavens from the waters. Dry land appeared on the third day. "And God said, 'Let the waters under the sky be gathered together into once place, and let the dry land appear.'"(Genesis 1:9). He made distinction between night and day on the fourth day, and on the fifth day He created the creatures of the seas and the air as well as "the wild animals of the earth of every kind, and the cattle of every kind, and everything that creeps upon the ground of every kind."(Genesis 1:25). The sixth day saw the creation of Adam, the first human. (Click "our origins" in the left-hand column). And, of course, on the seventh day God rested, and this became the Sabbath.