Titus 1:9

holding fast the faithful word which is in accordance with the teaching, so that he will be able both to exhort in sound doctrine and to refute those who contradict.

1 Timothy 1:10

and immoral men and homosexuals and kidnappers and liars and perjurers, and whatever else is contrary to sound teaching,

2 Thessalonians 2:15

So then, brethren, stand firm and hold to the traditions which you were taught, whether by word of mouth or by letter from us.

1 Timothy 6:3

If anyone advocates a different doctrine and does not agree with sound words, those of our Lord Jesus Christ, and with the doctrine conforming to godliness,

2 Timothy 1:13

Retain the standard of sound words which you have heard from me, in the faith and love which are in Christ Jesus.

1 Timothy 1:15

It is a trustworthy statement, deserving full acceptance, that Christ Jesus came into the world to save sinners, among whom I am foremost of all.

Titus 2:1

But as for you, speak the things which are fitting for sound doctrine.

Job 2:3

The Lord said to Satan, “Have you considered My servant Job? For there is no one like him on the earth, a blameless and upright man fearing God and turning away from evil. And he still holds fast his integrity, although you incited Me against him to ruin him without cause.”

Job 27:6

“I hold fast my righteousness and will not let it go.
My heart does not reproach any of my days.

Proverbs 23:23

Buy truth, and do not sell it,
Get wisdom and instruction and understanding.

Acts 18:28

for he powerfully refuted the Jews in public, demonstrating by the Scriptures that Jesus was the Christ.

1 Corinthians 14:24

But if all prophesy, and an unbeliever or an ungifted man enters, he is convicted by all, he is called to account by all;

1 Thessalonians 5:21

But examine everything carefully; hold fast to that which is good;

1 Timothy 1:19

keeping faith and a good conscience, which some have rejected and suffered shipwreck in regard to their faith.

1 Timothy 4:9

It is a trustworthy statement deserving full acceptance.

2 Timothy 2:2

The things which you have heard from me in the presence of many witnesses, entrust these to faithful men who will be able to teach others also.

2 Timothy 2:25

with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth,

2 Timothy 4:3

For the time will come when they will not endure sound doctrine; but wanting to have their ears tickled, they will accumulate for themselves teachers in accordance to their own desires,

Titus 1:11

who must be silenced because they are upsetting whole families, teaching things they should not teach for the sake of sordid gain.

Titus 2:7-8

in all things show yourself to be an example of good deeds, with purity in doctrine, dignified,

Jude 1:3

Beloved, while I was making every effort to write you about our common salvation, I felt the necessity to write to you appealing that you contend earnestly for the faith which was once for all handed down to the saints.

Revelation 2:25

Nevertheless what you have, hold fast until I come.

Revelation 3:3

So remember what you have received and heard; and keep it, and repent. Therefore if you do not wake up, I will come like a thief, and you will not know at what hour I will come to you.

Revelation 3:11

I am coming quickly; hold fast what you have, so that no one will take your crown.

Treasury of Scripture Knowledge

Summary

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.

Bible References

Fast

1 Timothy 1:15
It is a trustworthy statement, deserving full acceptance, that Christ Jesus came into the world to save sinners, among whom I am foremost of all.
1 Timothy 4:9
It is a trustworthy statement deserving full acceptance.
1 Timothy 6:3
If anyone advocates a different doctrine and does not agree with sound words, those of our Lord Jesus Christ, and with the doctrine conforming to godliness,
2 Timothy 2:2
The things which you have heard from me in the presence of many witnesses, entrust these to faithful men who will be able to teach others also.

Sound

Titus 2:1
But as for you, speak the things which are fitting for sound doctrine.
1 Timothy 1:10
and immoral men and homosexuals and kidnappers and liars and perjurers, and whatever else is contrary to sound teaching,
1 Timothy 6:3
If anyone advocates a different doctrine and does not agree with sound words, those of our Lord Jesus Christ, and with the doctrine conforming to godliness,
2 Timothy 4:3
For the time will come when they will not endure sound doctrine; but wanting to have their ears tickled, they will accumulate for themselves teachers in accordance to their own desires,

To convince

Titus 1:11
who must be silenced because they are upsetting whole families, teaching things they should not teach for the sake of sordid gain.
Acts 18:28
for he powerfully refuted the Jews in public, demonstrating by the Scriptures that Jesus was the Christ.
1 Corinthians 14:24
But if all prophesy, and an unbeliever or an ungifted man enters, he is convicted by all, he is called to account by all;
2 Timothy 2:25
with gentleness correcting those who are in opposition, if perhaps God may grant them repentance leading to the knowledge of the truth,

General references

Leviticus 14:42
Then they shall take other stones and replace those stones, and he shall take other plaster and replaster the house.
Leviticus 15:8
Or if the man with the discharge spits on one who is clean, he too shall wash his clothes and bathe in water and be unclean until evening.
Ezekiel 44:9
‘Thus says the Lord God, “No foreigner uncircumcised in heart and uncircumcised in flesh, of all the foreigners who are among the sons of Israel, shall enter My sanctuary.
Haggai 2:11
“Thus says the Lord of hosts, ‘Ask now the priests for a ruling:
Titus 2:1
But as for you, speak the things which are fitting for sound doctrine.