The psalm urges us to rejoice in God because we are completely his. The psalmist’s joyful reflection sparks an outpouring of gratitude. For those who understand the Cross, it should evoke a sense of wonder that God has claimed what was already his—making us doubly his. ‘You are bought with a great price,’ writes St. Paul; ‘not with gold or silver,’ Peter says, ‘but with the precious blood of Christ’ (1 Cor 6:20; 1 P 1:18). This psalm was renewed at Calvary. We must remember that as we sing it!