Contradiction with Matthew 5:48
Colossians 2:10 suggests that believers are complete in Christ, whereas Matthew 5:48 calls believers to be "perfect" as the Father in heaven is perfect, implying an ongoing process rather than completion.
Matthew 5:48: Be ye therefore perfect, even as your Father which is in heaven is perfect.
Contradiction with Philippians 3:12
Colossians 2:10 states believers are complete in Christ, while Philippians 3:12 shows Paul admitting he has not yet attained perfection, but presses on to make it his own.
Philippians 3:12: Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.
Contradiction with 1 John 1:8
While Colossians 2:10 speaks to completeness in Christ, 1 John 1:8 reminds believers that claiming to be without sin is self-deceptive, suggesting incompleteness.
1 John 1:8: If we say that we have no sin, we deceive ourselves, and the truth is not in us.
Contradiction with Romans 7:18-19
Colossians 2:10 implies completeness, yet Romans 7:18-19 describes an ongoing struggle with sin and a lack of complete control over one’s actions, suggesting imperfection.
Romans 7:18-19: For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but [how] to perform that which is good I find not.
Contradiction with Hebrews 6:1
Colossians 2:10 claims believers are complete, whereas Hebrews 6:1 encourages believers to move on to perfection, indicating a journey rather than a completed state.
Hebrews 6:1: Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God, [principles...: or, word of the beginning of]