Contradiction with Proverbs 14:12
This verse suggests that the way that seems right to a man can lead to death, while Isaiah 35:8 speaks of a clear, safe path called "The way of holiness," suggesting certainty and safety in following God's path.
Proverbs 14:12: There is a way which seemeth right unto a man, but the end thereof [are] the ways of death.
Contradiction with 1 Corinthians 1:27
This verse explains that God has chosen the foolish things of the world to confound the wise, which contrasts with Isaiah 35:8's emphasis on the straightforward nature of the "way of holiness" for the simple and unwise.
1 Corinthians 1:27: But God hath chosen the foolish things of the world to confound the wise; and God hath chosen the weak things of the world to confound the things which are mighty;
Contradiction with Matthew 7:13-14
These verses describe a narrow path that leads to life and a broad path that leads to destruction, which highlights the risk and difficulty of following the right path, in contrast to Isaiah 35:8's depiction of a safe and clear path.
Matthew 7:13-14: Enter ye in at the strait gate: for wide [is] the gate, and broad [is] the way, that leadeth to destruction, and many there be which go in thereat: [strait: or, narrow]
Contradiction with Romans 3:10-12
These verses declare that none are righteous and none seek after God, contradicting the depiction in Isaiah 35:8 of those walking the holy path who must inherently be righteous and seeking God.
Romans 3:10-12: As it is written, There is none righteous, no, not one: