. . . THOUGH . . . Paul did speak of the two warring . . . tendencies, natures, factions . . .
within him.
It's part of our sin nature to be at enmity with the will of God. That is why His "rod and staff" they guides us. Like sheep we simply follow. When we start to go astray, God prods us back. We don't do the things God wants us to do easily but He makes us do it for His kingdom and our benefit.