'Commandment' in the Bible

He hath stretched out his hand over the sea, he hath shaken the kingdoms: Jehovah hath given commandment concerning Canaan, to destroy the strongholds thereof.

And the Lord said, Forasmuch as this people draw nigh unto me , and with their mouth and with their lips to honor me, but have removed their heart far from me, and their fear of me is a commandment of men which hath been taught them ;

But they held their peace, and answered him not a word; for the king's commandment was, saying, Answer him not.