Matthew 16:24: “Then Jesus said to His disciples, ‘If anyone desires to come after Me, let him deny himself, and take up his cross, and follow Me.’”
The principle of depending on the grace of God for Christian living is the humbling reality of self-denial – the “not I” approach to Christian living. Self-denial is fundamental to genuine Christian living. It is not optional. It is absolutely compulsory. Jesus Christ states it forthrightly in the Scriptures. Jesus constantly mentions self-denial and taking up one's cross as two necessary requirements for any one to be His disciple.
Interestingly taking up one's cross is identical to self-denial. The Cross to Christ meant His crucifixion and death. To a believer in Christ, taking up one's cross means to personalize the Cross of Christ. It means entering into the crucifixion and death of Christ. And so, taking up one's cross, like self-denial, means death to self.
The Christian life begins at the crucifixion, death, or end of one's self. Paul writes in Galatians 2:2: “I have been crucified with Christ; it is no longer I who live, but Christ lives in me.”
Christianity to Paul was a life void of ego. His ego was terminated with the crucifixion of Christ. Personalizing the crucifixion of Christ, taking up his cross, Paul acknowledged the end of himself in the Cross of Christ. "I have been crucified with Christ; it is no longer I who live." And, hence, the new life he then lived was not he who was living but Christ was living in him. This was not Paul's private brand of Christianity but the God-ordained universal form of genuine Christianity. It's the form of selfless living which anyone who wants to follow Christ must live, according to Jesus Christ.
God designed the Christian life to be lived in complete selflessness and in absolute dependence on Him. This is the theme of the Gospel. And it is contrary to human philosophy or psychology of living, which puts the emphasis on self. While Christian living rests on self-denial, human philosophy or psychology of life rests on self-confidence.
It is difficult in the logic of human reasoning to think of living and accomplishing anything in this world without one's own contribution and effort. But the basis of Christian living is “not I.” To the Christian who can grasp the wisdom of God in the importance of self-denial in Christian living, it is the exchange of the feeble and futile resources of self for the powerful and fruitful resources of the grace of God.
Indeed, to give up one’s self resources for the resources of the life of Christ is no loss or unfair deal for any sincere human being who admits to the frailty and inadequacy of himself in any attempt to live the Christian life. It brings such hope and relief to those of us who have known the miserable disappointments of trying to live the Christian life by putting out the best efforts we can of ourselves and still ending up failing God's standard.
In God's design for Christian living, He wants no contribution from self. We read in 2 Corinthians 3:4-6: “And we have such trust through Christ toward God. Not that we are sufficient of ourselves to think of anything as being from ourselves, but our sufficiency is from God, who also made us sufficient as ministers of the new covenant.”
What an amazing exchange is the giving up of ourselves with its insufficiency for the sufficiency of God in Christ! God knowing the insufficiency of ourselves expects us to think of making absolutely no contribution of ourselves, but to depend entirely on Him who by His grace empowers us with His resources to be His sufficient or perfectly equipped ministers.
Paul after his salvation worked extremely hard to minister this glorious Gospel to the Gentiles. He testified that he "labored more abundantly than" all the other apostles. Paul made some amazing accomplishments that are well documented in the history of the Church in the book of Acts. Yet, in bringing us into the knowledge of the true cause of his accomplishment Paul startles us by revealing that he was not the one to be credited for these accomplishments. It was the grace of God in him. Paul declares in 1 Corinthians 15:10: “But by the grace of God I am what I am, and His grace toward me was not in vain; but I labored more abundantly than they all, yet not I, but the grace of God which was with me.”
In fact, Paul was humble enough to let us into the privacy of his life to relate humbly to us his own nagging weakness and his constant dependence on the grace of God for his excellent performances. We read Paul’s account in 2 Corinthians 12:7-9: “And lest I should be exalted above measure by the abundance of the revelations, a thorn in the flesh was given to me, a messenger of Satan to buffet me, lest I be exalted above measure. Concerning this thing I pleaded with the Lord three times that it might depart from me. And He said to me, ‘My grace is sufficient for you, for My strength is made perfect in weakness.’ Therefore most gladly I will rather boast in my infirmities, that the power of Christ may rest upon me.”
And so, an important truth to note is, according to God's design for Christian living, human weakness does not have to lead to failure. By glorying in his human weaknesses Paul was not giving in to failure or glorying in failure. He found instead that by allowing Christ to live in him, the strength of God operated perfectly through him to produce his excellent accomplishments.
If you and I are humble enough to acknowledge our own weaknesses, and turn to God in faith to rely fully on the grace of God, we can experience the sufficiency of the grace of God in place of the insufficiency of ourselves.