'Commandment' in the Bible

If you will fear the Lord [with awe and profound reverence] and serve Him and listen to His voice and not rebel against His commandment, then both you and your king will follow the Lord your God [and it will be well].

But if you do not listen to the Lord’s voice, but rebel against His command, then the hand of the Lord will be against you [to punish you], as it was against your fathers.

Samuel said to Saul, “You have acted foolishly; you have not kept the commandment of the Lord your God, which He commanded you, for [if you had obeyed] the Lord would have established your kingdom over Israel forever.

Then Saul said to Samuel, “I have sinned; for I have transgressed the command of the Lord and your words, because I feared the people and obeyed their voice.