"To the conductor with musical instruments. This psalm is said in three types of praise with leadership, in melody, in song, with music that is of prophecy, as it is said (2 Kings 3:15), 'And it came to pass, when the minstrel played, that the hand of the Lord came upon him.' To the conductor, for the one who is fitting to lead, for the one whose leadership is victorious forever. Another interpretation is for the conductor of the one who is conquered by his own sins. A mortal king is conquered with anger, but the Holy One, blessed be He, conquers with joy, as it is said (Psalms 106:23), 'Therefore He said that He would destroy them, had not Moses His chosen stood before Him in the breach.'"...