KJV:
What advantage then hath the Jew? or what profit is there of circumcision?
NASB:
Then what advantage has the Jew? Or what is the benefit of circumcision?
KJV:
These are murmurers, complainers, walking after their own lusts; and their mouth speaketh great swelling words, having men's persons in admiration because of advantage.
NASB:
These are grumblers, finding fault, following after their own lusts; they speak arrogantly, flattering people for the sake of gaining an advantage.