Psalms 81:1 «To the chief Musician upon Gittith, [A Psalm] of Asaph. » Sing aloud unto God our strength: make a joyful noise unto the God of Jacob.
Upon Gittith] An instrument brought from Gath, or used by Obed Edom, the Gittite; or a psalm to be sung at the vintages, i.e. at the Feast of Tabernacles. It containeth a solemn thanksgiving (for which cause also that feast was instituted), with so great joy, that Plutarch took occasion therehence to write, but falsely, that the Jews did then keep a feast, or holy day, to Bacchus, ωσχοφορια .
Ver. 1. Sing aloud unto God] Be loud and large in his praises, set them forth cheerfully and courageously. God loveth zeal in all his services, In symposio gaudium cantu accendite.