15 And the captain of the LORD's host said unto Joshua, Loose thy shoe from off thy foot; for the place whereon thou standest is holy. And Joshua did so.
Joshua 5:15 Cross References - KJV
Exodus 3:5
5 And he said, Draw not nigh hither: put off thy shoes from off thy feet, for the place whereon thou standest is holy ground.
Acts 7:32-33
2 Peter 1:18
18 And this voice which came from heaven we heard, when we were with him in the holy mount.