Psalms 51:11,12 - Joseph Benson’s Commentary on the Old and New Testaments

Cast me not away from thy presence That is, from thy favour and care. Take not thy Holy Spirit from me Thy sanctifying Spirit, by which alone I can have acquaintance and fellowship with thee. Restore unto me the joy of thy salvation The comfortable sense of thy saving grace, promised and vouchsafed to me, both for my present and everlasting salvation. And uphold me A weak and frail creature, not able to stand against temptation and the corruption of my nature, without thy powerful and gracious succours; with thy free Spirit Or ingenuous, liberal, or princely, which he seems to oppose to this own base, illiberal, disingenuous, and servile spirit, which he had discovered in his wicked and unworthy practices. And he now desires a better spirit of God, which might free him from the bondage of sin, and incline and enable him freely, cheerfully, and constantly to run the way of God's precepts.