NT-EPISTLES.filter - kjv gainsaying:

kjv@Romans:10:21 @ But to Israel he saith, All day long I have stretched forth my hands unto a disobedient and gainsaying people.

kjv@Jude:1:11 @ Woe unto them! for they have gone in the way of Cain, and ran greedily after the error of Balaam for reward, and perished in the gainsaying of Core.