'Legends' in the Bible

nor to pay attention to legends (fables, myths) and endless genealogies, which give rise to useless speculation and meaningless arguments rather than advancing God’s program of instruction which is grounded in faith [and requires surrendering the entire self to God in absolute trust and confidence].

But have nothing to do with irreverent folklore and silly myths. On the other hand, discipline yourself for the purpose of godliness [keeping yourself spiritually fit].