Genesis 18:2, 17, 22, 31

He lifted up his eyes and looked, and behold, three men were standing in front of him. When he saw them, he ran from the tent door to meet them and bowed himself to the earth

The LORD said, “Shall I hide from Abraham what I am about to do

So the men turned from there and went toward Sodom, but Abraham still stood before the LORD.

He said, “Behold, I have undertaken to speak to the Lord. Suppose twenty are found there.” He answered, “For the sake of twenty I will not destroy it.”