What was it that caused Abraham, Moses and the prophets to do the mighty works for God that they did? What was it that gave David the sweetness in his Psalms or the fight in him to be called a man of war? What made Joshua and Caleb absolutely persuaded that they could take the land? It was the revelation of the Christ. When we come to know Christ as He is we too will walk in complete victory in this life. It is not in keeping the law but in being animated by the very life of Christ. I am crucified with Christ nevertheless I live, yet not I but Christ lives in me. And the life that I now live in the flesh I live by the faith of the Son of God, who loved me and gave Himself for me.
-Lewis
Titus 2:11-14