'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 what, if certain were faithless? shall their faithlessness the faithfulness of god make useless?

All have turned away;all alike have become useless.There is no one who does what is good,not even one.

Law then do we make useless through the faith? let it not be! yea, we do establish law.

For if those who were given the Law are the heirs, then faith is useless and the promise is worthless,

this knowing, that our old man was crucified with him, that the body of the sin may be made useless, for our no longer serving the sin;