For the director of music. According to gittith. Of Asaph.

1 abSing for joy to God our strength; shout aloud to the God of Jacob!
2 Begin the music, strike the timbrel, play the melodious harp and lyre.
3 Sound the ram’s horn at the New Moon, and when the moon is full, on the day of our festival;
4 this is a decree for Israel, an ordinance of the God of Jacob.