'Unprofitable' in the Bible

Should he reason with unprofitable talk? or with speeches wherewith he can do no good?

The burden of the animals of the South. Through the land of trouble and anguish, of the lioness and the lion, the viper and fiery flying serpent, they carry their riches on the shoulders of young donkeys, and their treasures on the humps of camels, to an unprofitable people.

And cast ye the unprofitable servant into outer darkness: there shall be weeping and gnashing of teeth.

So likewise ye, when ye shall have done all those things which are commanded you, say, We are unprofitable servants: we have done that which was our duty to do.

They are all gone out of the way, they are together become unprofitable; there is none that doeth good, no, not one.

Have nothing to do with the barren unprofitable deeds of darkness, but, instead of that, set your faces against them;

Bring all this to men's remembrances, solemnly charging them in the presence of God not to waste time in wrangling about mere words, a course which is altogether unprofitable and tends only to the ruin of the hearers.

But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.

Which in time past was to thee unprofitable, but now profitable to thee and to me:

So the previous command is annulled because it was weak and unprofitable

Obey them that have the rule over you, and submit yourselves: for they watch for your souls, as they that must give account, that they may do it with joy, and not with grief: for that is unprofitable for you.