Joshua 5:13-15

13And it came to pass, when Joshua was by Jericho, that he lifted up his eyes and looked, and, behold, there stood a man over against him with his sword drawn in his hand: and Joshua went unto him, and said unto him, Art thou for us, or for our adversaries? 14And he said, Nay; but as prince of the host of Jehovah am I now come. And Joshua fell on his face to the earth, and did worship, and said unto him, What saith my lord unto his servant? 15And the prince of Jehovah’s host said unto Joshua, Put off thy shoe from off thy foot; for the place whereon thou standest is holy. And Joshua did so.