'Feet' in the Bible

Let me get water for washing your feet, and take your rest under the tree:

And he said, My masters, come now into your servant's house and take your rest there for the night, and let your feet be washed; and early in the morning you may go on your way. And they said, Not so, but we will take our night's rest in the street.

Then the man came into the house, and Laban took their cords off the camels and gave them dry grass and food, and he gave to him and the men who were with him water for washing their feet.

And the servant took them into Joseph's house, and gave them water for washing their feet; and he gave their asses food.

Then his brothers went, and falling at his feet, said, Truly, we are your servants.