9 But avoid foolish controversies and genealogies and arguments and quarrels about the law, because these are unprofitable and useless.

Read Titus 3:9 Using Other Translations

But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
But avoid foolish controversies, genealogies, dissensions, and quarrels about the law, for they are unprofitable and worthless.
Do not get involved in foolish discussions about spiritual pedigrees or in quarrels and fights about obedience to Jewish laws. These things are useless and a waste of time.