Because of Jesus and The Cross we now live under His Grace instead of the Law of the Old Testament. The Law was powerless to the sin nature of the flesh due to our free will. God undertook our deliverance by sending His Son and enabling us to overcome the sin nature. Jesus condemned sin and made a way for us to fulfill the righteousness of the Law by sending us His Holy Spirit. The Holy Spirit is the source of a Christian’s strength to be led by God’s righteousness.   He is the one who quickens our flesh against the sin nature. The Holy Spirit is the one sent here to help us fight! God did not leave us here to fight our own battles against evil. A soldier does not go into battle unarmed and neither does a Christian. The Lord has provided us all of the tools necessary to overcome the battle against our flesh. All of the rest of the battles belong to Him.