'Feet' in the Bible

It shall be when he lies down, that you shall notice the place where he lies, and you shall go and uncover his feet and lie down; then he will tell you what you shall do.”

When Boaz had eaten and drunk and his heart was merry, he went to lie down at the end of the heap of grain; and she came secretly, and uncovered his feet and lay down.

It happened in the middle of the night that the man was startled and bent forward; and behold, a woman was lying at his feet.

So she lay at his feet until morning and rose before one could recognize another; and he said, “Let it not be known that the woman came to the threshing floor.”