Titus 1:9

⁷ For a bishop must be blameless, as the steward of God; not selfwilled, not soon angry, not given to wine, no striker, not given to filthy lucre;

⁸ But a lover of hospitality, a lover of good men, sober, just, holy, temperate;

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.

¹⁰ For there are many unruly and vain talkers and deceivers, specially they of the circumcision:

¹¹ Whose mouths must be stopped, who subvert whole houses, teaching things which they ought not, for filthy lucre’s sake.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

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.
KJV: 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.
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.
ASV: 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.
DARBY: clinging to the faithful word according to the doctrine taught, that he may be able both to encourage with sound teaching and refute gainsayers.
BLB: holding to the faithful word according to the teaching, that he may be able both to exhort in sound teaching and to convict those contradicting [it].

ÅB: en som holder fast ved det troverdige ord etter læren, for at han kan være i stand til både å formane ved den sunde lære og å tale til rette dem som sier imot.
OTB: Han må holde fast ved det troverdige ord som han er blitt undervist i, så han kan være i stand til å oppmuntre med den sunne lære og tilbakevise dem som sier imot.
B1930: en som holder fast ved det troverdige ord efter læren, forat han kan være i stand til både å formane ved den sunde lære og å tale til rette dem som sier imot.

2 Thessalonians 2:15
Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.
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2 Timothy 1:13
Hold fast the form of sound words, which thou hast heard of me, in faith and love which is in Christ Jesus.
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1 Timothy 6:3
If any man teach otherwise, and consent not to wholesome words, even the words of our Lord Jesus Christ, and to the doctrine which is according to godliness;
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1 Timothy 1:10
For whoremongers, for them that defile themselves with mankind, for menstealers, for liars, for perjured persons, and if there be any other thing that is contrary to sound doctrine;
Read in context
Revelation 3:3
Remember therefore how thou hast received and heard, and hold fast, and repent. If therefore thou shalt not watch, I will come on thee as a thief, and thou shalt not know what hour I will come upon thee.
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Revelation 3:11
Behold, I come quickly: hold that fast which thou hast, that no man take thy crown.
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1 Timothy 1:15
This is a faithful saying, and worthy of all acceptation, that Christ Jesus came into the world to save sinners; of whom I am chief.
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1 Corinthians 14:24
But if all prophesy, and there come in one that believeth not, or one unlearned, he is convinced of all, he is judged of all:
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