Berean Standard Bible (BSB)
He must hold firmly to the faithful word as it was taught, so that he can encourage others by sound teaching and refute those who contradict it.
World English Bible (WEB)
holding to the faithful word which is according to the teaching, that he may be able to exhort in the sound doctrine, and to convict those who contradict him.
Strong's King James
Holding fast{G472}{(G5740)} the faithful{G4103} word{G3056} as{G2596} he hath been taught{G1322}, that{G2443} he may be{G5600}{(G5753)} able{G1415} by{G1722} sound{G5198}{(G5723)} doctrine{G1319} both{G2532} to exhort{G3870}{(G5721)} and{G2532} to convince{G1651}{(G5721)} the gainsayers{G483}{(G5723)}.
The F.O.G *
(9) and devoted to helping the faithful word in accordance to the teaching. So that they might be able to both urgently summon in healthy doctrine and convict those opposing.
The F.O.G Message *
Young's Literal Translation
holding—according to the teaching—to the stedfast word, that he may be able also to exhort in the sound teaching, and the gainsayers to convict;