'Useless' in the Bible

For when they had come to know God, they did not give Him glory as God nor render Him thanks, but they became absorbed in useless discussions, and their senseless minds were darkened.

For if it is the righteous through Law who are heirs, then faith is useless and the promise counts for nothing.

And again, "The Lord takes knowledge of the reasonings of the wise--how useless they are."

Train yourself in godliness. Exercise for the body is not useless, but godliness is useful in every respect, possessing, as it does, the promise of Life now and of the Life which is soon coming.

They profess to know God; but in their actions they disown Him, and are detestable and disobedient men, and for any good work are utterly useless.

But hold yourself aloof from foolish controversies and pedigrees and discussions and wrangling about the Law, for they are useless and vain.

And let our people too learn to set a good example in following honest occupations for the supply of their necessities, so that they may not live useless lives.

Formerly he was useless to you, but now--true to his name--he is of great use to you and to me.