G3152–μάταιος–mataios

Good people, why are you doing these things? We are men with the same feelings as you, and we give you the good news so that you may be turned away from these foolish things to the living God, who made the heaven and the earth and the sea and all things

ματαίων mataiōn “vanities”

And again, The Lord has knowledge of the reasonings of the wise, that they are nothing.

μάταιοι. mataioi “futile.”

And if that is so, your faith is of no effect; you are still in your sins.

ματαία mataia “[is] futile”

But have nothing to do with foolish questionings, and lists of generations, and fights and arguments about the law; for they are of no profit and foolish.

μάταιοι. mataioi “worthless.”

If a man seems to have religion and has no control over his tongue but lets himself be tricked by what is false, this man's religion is of no value.

μάταιος mataios “worthless [is]”

Being conscious that you have been made free from that foolish way of life which was your heritage from your fathers, not through a payment of things like silver or gold which come to destruction,

ματαίας mataias “futile”