This meditation is the companion of the preceding one. It is an evening prayer of the same godly man. He appears to have passed through a trying day (as was every day to Jesus more or less), but to have been sustained and refreshed in it.
The godly man, as here, may go to bed and sleep (Psa. 4:8); but he warns others to go to bed, and there commune with their hearts, and search their spirits (Psa. 4:4). He knows His own full title to rest in God undisturbed; for “God giveth His beloved sleep.” The Lord Jesus realized this, though winds and waves tossed the ship on the sea of Galilee. (See Mark 4.)