'Training' 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 unclean and foolish stories. Give yourself training in religion:

forthe training of the body has a limited benefit,but godliness is beneficial in every way,since it holds promise for the present lifeand also for the life to come.