Cross reference
Acts 7:33
33 and the Lord said to him, Loose the sandal of thy feet, for the place in which thou hast stood is holy ground;
Exodus 3:5
5 And He saith, `Come not near hither: cast thy shoes from off thy feet, for the place on which thou art standing is holy ground.'
Joshua 5:15
15 And the Prince of Jehovah's host saith unto Joshua, `Cast off thy shoe from off thy foot, for the place on which thou art standing is holy;' and Joshua doth so;
Ecclesiastes 5:1
1 Keep thy feet when thou goest unto a house of God, and draw near to hear rather than to give of fools the sacrifice, for they do not know they do evil.
2 Peter 1:18
18 and this voice we -- we did hear, out of heaven borne, being with him in the holy mount.