'Commandment of the Lord' in the Bible

If you will fear the LORD, and serve him, and listen to his voice, and not rebel against the commandment of the LORD, then both you and also the king who reigns over you are followers of the LORD your God.

But if you will not listen to the voice of the LORD, but rebel against the commandment of the LORD, then will the hand of the LORD be against you, and against your king.

Samuel said to Saul, "You have done foolishly. You have not kept the commandment of the LORD your God, which he commanded you; for now the LORD would have established your kingdom on Israel forever.

And Samuel came to Saul; and Saul said to him, "You are blessed by the LORD. I have performed the commandment of the LORD."

Saul said to Samuel, "I have sinned; for I have transgressed the commandment of the LORD, and your words, because I feared the people, and obeyed their voice.