15 He is the image of the invisible God, the firstborn of all creation. 16 For by Him all things were created, in heaven and on earth, visible and invisible, whether thrones or dominions or rulers or authorities–all things were created through Him and for Him. 17 And He is before all things, and in Him all things hold together. 18 And He is the head of the body, the church. He is the beginning, the firstborn from the dead, that in everything He might be preeminent. 19 For in Him all the fullness of God was pleased to dwell, 20 and through Him to reconcile to Himself all things, whether on earth or in heaven, making peace by the blood of His cross.
21 And you, who once were alienated and hostile in mind, doing evil deeds, 22 He has now reconciled in His body of flesh by His death, in order to present you holy and blameless and above reproach before Him, 23 if indeed you continue in the faith, stable and steadfast, not shifting from the hope of the gospel that you heard, which has been proclaimed in all creation under heaven, and of which I, Paul, became a minister. (ESV)
There is nothing we can add to the finished work of Christ to redeem us. The fullness of the Deity is experienced in Christ. It is sufficient. You have been cleansed from sin, so walk in faith with Christ.
To be like the Master is a challenge, but I must realize that the power of Christ has been released in my life. God gives it to believers. We must resolve as Paul did not to do the things anymore of which we are now ashamed, but to live a life which is pleasing to God, because of what Christ did for us.
If then you are in Christ, walk like He did.