Genesis 18:20

Overview - Genesis 18
1	The Lord appears to Abraham, who entertains angels.
9	Sarah is reproved for laughing at the promise of a son.
16	The destruction of Sodom is revealed to Abraham.
23	Abraham makes intercession for the inhabitants.

Genesis 18:20  (King James Version)
And the LORD said, Because the cry of Sodom and Gomorrah is great, and because their sin is very grievous;