The psalm begins with an invitation to sing aloud to God our strength and to shout for joy to the God of Jacob. It calls for taking up the tambourine, the lyre and the harp, and blowing the trumpet at the new moon and at the full moon, on our feast day. This is a statute for Israel and an ordinance of the God of Jacob, which he made a testimony in Joseph when he went out over the land of Egypt. There he heard a language he did not know.
In verses 6 to 10, God himself speaks. He relieved their shoulder of the burden and their hands were freed from the basket. In distress they called, and he delivered them; he answered in the secret place of thunder and tested them at the waters of Meribah. He asks them to hear his testimony: there shall be no strange god among them, nor shall they bow down to a foreign god, for he is the Lord their God who brought them out of Egypt. Open your mouth wide, and I will fill it.
Verses 11 to 16 reflect a warning. My people did not listen to my voice and Israel would have none of me. So I gave them over to their stubborn hearts, to follow their own counsels. But God still longs: oh, that my people would listen to me! If Israel would walk in my ways, I would soon subdue their enemies and turn my hand against their foes. Those who hate the Lord would cringe toward him, and their fate would last forever. God would feed them with the finest of the wheat and with honey from the rock he would satisfy them.