Titus 3:11
knowing that such a man is corrupt and sinful; he is self-condemned.
What it says
For such a person is warped and sinful, being self-condemned.
What it is doing
It closes the section by naming the moral state of the divisive person.
In context
9But avoid foolish controversies, genealogies, arguments, and quarrels about the law, because these things are pointless and worthless. 10Reject a divisive man after a first and second admonition, 11knowing that such a man is corrupt and sinful; he is self-condemned.