KJV:
And saying, Sirs, why do ye these things? We also are men of like passions with you, and preach unto you that ye should turn from these vanities unto the living God, which made heaven, and earth, and the sea, and all things that are therein:
NASB:
and saying, "Men, why are you doing these things? We are also men of the same nature as you, and preach the gospel to you that you should turn from these vain things to a living God, WHO MADE THE HEAVEN AND THE EARTH AND THE SEA AND ALL THAT IS IN THEM.
KJV:
And again, The Lord knoweth the thoughts of the wise, that they are vain.
NASB:
and again, "THE LORD KNOWS THE REASONINGS of the wise, THAT THEY ARE USELESS."
KJV:
And if Christ be not raised, your faith is vain; ye are yet in your sins.
NASB:
and if Christ has not been raised, your faith is worthless; you are still in your sins.
KJV:
But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
NASB:
But avoid foolish controversies and genealogies and strife and disputes about the Law, for they are unprofitable and worthless.
KJV:
If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain.
NASB:
If anyone thinks himself to be religious, and yet does not bridle his tongue but deceives his own heart, this man's religion is worthless.
KJV:
Forasmuch as ye know that ye were not redeemed with corruptible things, as silver and gold, from your vain conversation received by tradition from your fathers;
NASB:
knowing that you were not redeemed with perishable things like silver or gold from your futile way of life inherited from your forefathers,