1 “Not unto us, O Lord, not unto us, but unto Your Name give the praise”. For that grace of the water that gushed from the rock (“now that rock was Christ”), was not given on the score of works that had gone before, but of His mercy “that justifies the ungodly.” For “Christ died for sinners,” that men might not seek any glory of their own, but in the Lord's Name.
Source: The Enarrations, or Expositions, on the Psalms (New Advent)