'Instructions' in the Bible

“I regret that I made Saul king, for he has turned away from following Me and has not carried out My instructions.” So Samuel became angry and cried out to the Lord all night.

When Samuel came to him, Saul said, “May the Lord bless you. I have carried out the Lord’s instructions.”

David replied to Ahimelech the priest, "The king instructed me to do something, but he said to me, 'Don't let anyone know the reason I am sending you or the instructions I have given you.' I have told my soldiers to wait at a certain place.

David said to Ahimelech, "Is there no sword or spear here at your disposal? I don't have my own sword or equipment in hand due to the urgency of the king's instructions."