'Shoe' in the Bible

then his brother's wife shall come to him in the presence of the elders, and loose his shoe from off his foot, and spit in his face; and she shall answer and say, "So shall it be done to the man who does not build up his brother's house."

His name shall be called in Israel, The house of him who has his shoe untied.

Now this was [the custom] in former time in Israel concerning redeeming and concerning exchanging, to confirm all things: a man took off his shoe, and gave it to his neighbor; and this was the [way of] attestation in Israel.

So the near kinsman said to Boaz, "Buy it for yourself." He took off his shoe.

Moab is my wash basin. I will throw my shoe on Edom. I shout in triumph over Philistia."