Titus 1:9

Holding fast the faithful word as he hath been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers.

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.

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 the gainsayers.

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;

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.