Contradiction with Exodus 20:3
Romans 16:27 attributes glory to God through Jesus Christ, but Exodus emphasizes worshiping only God directly.
Exodus 20:3: Thou shalt have no other gods before me.
Contradiction with Isaiah 42:8
Romans 16:27 includes Jesus in the glory to God, whereas Isaiah emphasizes God does not share His glory with another.
Isaiah 42:8: I [am] the LORD: that [is] my name: and my glory will I not give to another, neither my praise to graven images.
Contradiction with John 14:6
Romans 16:27 ends with a doxology through Jesus Christ, while John states access to the Father is only through Jesus, implying no direct glory.
John 14:6: Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
Contradiction with 1 Timothy 2:5
Romans 16:27 gives glory through Jesus Christ, yet Timothy clarifies Jesus as the sole mediator between God and men, not sharing glory.
1 Timothy 2:5: For [there is] one God, and one mediator between God and men, the man Christ Jesus;
Contradiction with Matthew 4:10
Romans 16:27 glorifies God via Jesus Christ, whereas Matthew commands worship and service solely to God directly.
Matthew 4:10: Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.