Titus 3:9

‘But shun foolish questionings, and genealogies, and strifes, and fightings about law, for they are unprofitable and vain.’

Having opened our eyes to the glory of the Gospel Paul now warns against letting its light be dimmed by becoming involved in fruitless controversies. Titus is to shun (turn his back on) the foolish questions, genealogies, arguments, and struggles about the Law and its metaphorical meaning that are common among the false teachers, because they are unprofitable and without purpose. They are simply fairy tales. The problems here were clearly very similar to those in 1 Timothy 1:4; 1 Timothy 1:7; 1 Timothy 6:4; 1 Timothy 6:20. The Old Testament Scriptures were by them being turned into a field of speculation and fantasy.