(Warren Peel – Gentle Reformation) Over and over again God reassures his people that he is holding on to us by his right hand. In Isaiah 41.10, for example: ‘…fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand.’ That is a wonderful promise to comfort us—our heavenly Father will not let us go. Even if we might try to break free of his grip and let go of him, he is holding on to us tightly and keeping us safe.
This is one way of picturing the doctrine of the perseverance of the saints. Every true believer will inevitably make it safely home to glory because the Lord is preserving him or her. We persevere because he preserves us; we keep on going because he goes on keeping. The two halves of Psalm 63.8 reflect the two sides of the doctrine of perseverance: ‘My soul clings to you; your right hand upholds me.’ Our souls go on clinging to God in faith because his right hand is upholding us.