Hebrews 13:9

Verse 9. Be not carried about with divers and strange doctrines. That is, they should have settled and fixed points of belief, and not yield to every new opinion which was started. The apostle does not exhort them to adhere to an opinion merely because they had before held it, or because it was an old opinion, nor does he forbid their following the leadings of truth, though they might be required to abandon what they had before held; but he cautions them against that vacillating spirit, and that easy credulity, which would lead them to yield to any novelty, and to embrace an opinion because it was new or strange.