Psalms 4:4

David urged his enemies on the basis of his calling by God (Psalms 4:3) not to give way to sin in their anger against the king (cf. Ephesians 4:26). They needed to tremble with fear and stop sinning. They would be wise to remain still as they meditated on their opposition to David, while lying in bed at night, rather than getting up and opposing him. Opposing the Lord’s anointed would constitute sin. It would be better for them to submit to God by submitting to His agent, King David.