1 Corinthians 11:19

19It behoovesδεῖforγὰρalsoκαὶfactionsαἱρέσειςamongἐνyouὑμῖνthere to beεἶναι,so thatἵναalsoκαὶtheοἱapprovedδόκιμοιevidentφανεροὶshould becomeγένωνταιamongἐνyouὑμῖν.

For also it is necessary for there to be factions among you⁺, so that also the ones approved should become evident among you⁺.