Genesis 18:1-7

1 And the LORD appeared unto him among the terebinth trees of Mamre; and he was sitting in the door of his tent in the heat of the day;
2 and he lifted up his eyes and looked, and, behold, three men stood by him; and when he saw them, he ran to meet them from the tent door and bowed himself toward the ground
3 and said, My Lord, if now I have found grace in thy sight, pass not away, I pray thee, from thy slave.
4 Let a little water, I pray you, be brought and wash your feet and rest yourselves under a tree;
5 and I will bring a morsel of bread and comfort your hearts; after that ye shall pass on because for this ye are come to your slave. And they said, So do as thou hast said.
6 And Abraham hastened into the tent unto Sarah and said, Make ready quickly three measures of fine meal, knead it, and make bread baked under the ashes.
7 And Abraham ran unto the herd and brought a calf tender and good and gave it unto a young man; and he hastened to dress it.