It is a little psalm out of a large heart. Grace enjoyed goes out toward others, yea to all. So shall Israel then sing. What a contrast with their narrowness of old! So Jehovah's mercy and truth will work in that day to His praise on earth. We see how beautifully these three psalms ending in Hallelujah follow Ps. 114 (Jehovah's intervention as when He brought Israel out of Egypt through the desert), which is preceded by the three psalms beginning with Hallelujah, as the last of these indeed both begins and ends.