Contradiction with Matthew 23:10
Jesus instructs not to call anyone on earth "master" or "leader," while Titus 1:5 appoints church leaders.
Matthew 23:10: Neither be ye called masters: for one is your Master, [even] Christ.
Contradiction with Matthew 20:25-26
Jesus says that followers should not exercise authority over one another, in contrast to appointing elders as leaders in Titus 1:5.
Matthew 20:25-26: But Jesus called them [unto him], and said, Ye know that the princes of the Gentiles exercise dominion over them, and they that are great exercise authority upon them.
Contradiction with 1 Peter 5:3
Advises church leaders not to "lord it over" others, while Titus 1:5 involves appointing elders with authority.
1 Peter 5:3: Neither as being lords over [God's] heritage, but being ensamples to the flock. [being lords over: or, overruling]
Contradiction with James 3:1
Warns against many becoming teachers due to stricter judgment, contrasting with ordaining many elders in Titus 1:5.
James 3:1: My brethren, be not many masters, knowing that we shall receive the greater condemnation. [condemnation: or, judgment]
Contradiction with Matthew 23:8
Stresses equality among believers, opposing the hierarchical nature implied in appointing elders in Titus 1:5.
Matthew 23:8: But be not ye called Rabbi: for one is your Master, [even] Christ; and all ye are brethren.