Genesis 18:4

And he said, Behold now, my lords, turn in, I pray you, into your servant’s house, and tarry all night, and wash your feet, and ye shall rise up early, and go on your ways. And they said, Nay; but we will abide in the street all night.

And the man brought the men into Joseph’s house, and gave them water, and they washed their feet; and he gave their asses provender.

And the man came into the house: and he ungirded his camels, and gave straw and provender for the camels, and water to wash his feet, and the men’s feet that were with him.

And he turned to the woman, and said unto Simon, Seest thou this woman? I entered into thine house, thou gavest me no water for my feet: but she hath washed my feet with tears, and wiped them with the hairs of her head.

And she arose, and bowed herself on her face to the earth, and said, Behold, let thine handmaid be a servant to wash the feet of the servants of my lord.

Well reported of for good works; if she have brought up children, if she have lodged strangers, if she have washed the saints’ feet, if she have relieved the afflicted, if she have diligently followed every good work.