Contradiction with Matthew 28:19
This verse contradicts Romans 15:21 by instructing believers to go and teach all nations about the Gospel, implying active outreach rather than places where Christ has not been named.
Matthew 28:19: Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: [teach...: or, make disciples, or, Christians of all nations]
Contradiction with Mark 16:15
This verse contradicts Romans 15:21 as it commands to go into all the world and preach to every creature, not avoiding building on another man’s foundation.
Mark 16:15: And he said unto them, Go ye into all the world, and preach the gospel to every creature.
Contradiction with Acts 1:8
This verse contradicts Romans 15:21 because it instructs the disciples to be witnesses to the ends of the earth, suggesting a mandate to share regardless of previous exposure.
Acts 1:8: But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth. [power...: or, the power of the Holy Ghost coming upon you]
Contradiction with Romans 10:14
This verse contradicts Romans 15:21 by highlighting the need for preaching for belief, suggesting the necessity of hearing the word, irrespective of prior declaration by others.
Romans 10:14: How then shall they call on him in whom they have not believed? and how shall they believe in him of whom they have not heard? and how shall they hear without a preacher?
Contradiction with 1 Corinthians 3:6
This verse contradicts Romans 15:21 by illustrating cooperation in spreading the Gospel, with one planting and another watering, rather than avoiding previous work.
1 Corinthians 3:6: I have planted, Apollos watered; but God gave the increase.
Contradiction with 2 Corinthians 10:16
This verse contradicts Romans 15:21 as it expresses the desire to preach the Gospel in regions beyond, where others have already preached, indicating a continuation rather than avoidance.
2 Corinthians 10:16: To preach the gospel in the [regions] beyond you, [and] not to boast in another man's line of things made ready to our hand. [line: or, rule]