Charles Ellicott Commentary Genesis 6:13

"And God said unto Noah, The end of all flesh is come before me; for the earth is filled with violence through them; and, behold, I will destroy them with the earth." — Genesis 6:13 (ASV)

The end of all flesh is come before me. —A metaphor taken from the customs of earthly kings. Before an order is executed, the decree is presented to the sovereign so that it may finally be examined and, if approved, receive the sovereign's signature, after which it becomes law.

I will destroy them. —This is not the verb used in Genesis 6:7, but the one translated had corrupted in Genesis 6:12. It means “to bring to ruin, devastate.”

With the earth. —Rather, even the earth: eth, as in Genesis 4:1. The meaning is, “I will bring them to nothing, even the entire present order of earthly things.”