Genesis 18:1-3

Now the Lord appeared to Abraham by the oaks of Mamre, while he was sitting at the tent door in the heat of the day.

When he raised his eyes and looked, behold, three men were standing opposite him; and when he saw them, he ran from the tent door to meet them and bowed down to the ground,

and said, “My Lord, if now I have found favor in Your sight, please do not pass Your servant by.