"Now let us remember that what was physical and literal to Abraham is intended to have spiritual significance to us. In the New Testament, we no longer read of circumcision of the flesh but of the heart. The heart is the symbol of the soul—the mind, emotions, and will, the whole personality. All believers in Christ are to bear on their hearts the sign of Christ's lordship. The total personality is to be at their disposal.
This is the meaning of heart circumcision: Believers' hearts are totally Christ's to use as He wills—all their emotions, mind, intellect, and will are dedicated and available, ready at the command of Jesus Christ to be used for His purposes. Paul says to the Philippians, "We are the circumcision, which worship God in the spirit, and rejoice in Christ Jesus, and have no confidence in the flesh" (Philippians 3:3 KJV). We are to have no reliance upon ourselves but rely totally upon Him. Every thought, every imagination, is brought into captivity to Christ. That is the circumcised life. "Walk therefore before me, and be wholehearted, blameless." That will be a life of fruitfulness and blessing, a life that is well pleasing to God, for it all springs from the realization that the God who lives within is El Shaddai, the God who is sufficient.
Father, it is quite possible for me to give the impression that I am totally Yours, yet to be quite false to that ideal. Help me to discover the glory of the circumcised life."