How did it start?

A person said that God used evolution to create life. I do not understand how you can believe this statement. If you believe in God then you must believe in the Bible. Genesis 1:20 says... "And God said, let the waters bring forth abundantly the moving creature that hath life and fowl that may fly above the earth in the open firmament of heaven. you cannot believe both. Another verse, to which i apologize i cannot remember the reference states..."One cannot serve both God and mad." therefore you must choose one side to stand on. There is no sitting on the fence.