'Washing' in the Bible

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

So the servant went to the house and unbridled the camels. They provided straw and feed for the camels and water for washing his feet and those of the men with him.

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

Then, after washing his face, he came out, and controlling his feelings said, Put food before us.

Knotting his ass's cord to the vine, and his young ass to the best vine; washing his robe in wine, and his clothing in the blood of grapes: