What does 'not unto us, O Lord' mean in Psalm 115?

'Not unto us, O Lord, not unto us, but unto thy name give glory' is a declaration that recognizes God as the sole source of salvation and glory. This refrain implies that believers must not take credit for their salvation or any accomplishments, but instead, all praise must be directed to God who redeems and saves by His own will and power. This principle resonates throughout the Bible, reflecting the understanding that human beings contribute nothing to their deliverance. Psalm 115 captures the heart of worship, directing attention away from human effort to God's sovereign grace.