What does the Bible say about God's perfection in us?

In Psalm 138:8, the scripture states, 'The Lord will perfect that which concerneth me.' This highlights that it is not our efforts that lead to perfection but God's active involvement in our lives. As believers, we can rest in the assurance that God will fulfill all His demands through Christ, who has perfected righteousness and holiness in us. Our role is not to achieve perfection ourselves but to trust in His work within us. This brings the believer true relief and happiness, knowing that every requirement of God is fulfilled in Christ on our behalf.