Titus 1:9

holding fast to the faithful Message which he has received, so that he may be well qualified both to encourage others with sound teaching and to reply successfully to opponents.

1 Timothy 1:10

fornicators, sodomites, slave-dealers, liars and false witnesses; and for whatever else is opposed to wholesome teaching

2 Thessalonians 2:15

So then, brethren, stand your ground, and hold fast to the teachings which you have received from us, whether by word of mouth or by letter.

1 Timothy 6:3

So teach and exhort. If any one is a teacher of any other kind of doctrine, and refuses assent to wholesome instructions--those of our Lord Jesus Christ--and the teaching that harmonizes with true godliness,

2 Timothy 1:13

Provide yourself with an outline of the sound teaching which you have heard from my lips, and be true to the faith and love which are in Christ Jesus.

1 Timothy 1:15

Faithful is the saying, and deserving of universal acceptance, that Christ Jesus came into the world to save sinners; among whom I stand foremost.

Titus 2:1

But as for you, you must speak in a manner that befits wholesome teaching.

Acts 18:28

for he powerfully and in public overcame the Jews in argument, proving to them from the Scriptures that Jesus is the Christ.

1 Corinthians 14:24

If, on the other hand, every one is prophesying and an unbeliever or an ungifted man comes in, he is convicted by all and closely examined by all,

1 Thessalonians 5:21

but test all such, and retain hold of the good.

1 Timothy 1:19

holding fast to faith and a clear conscience, which some have cast aside and have made shipwreck of their faith.

1 Timothy 4:9

Faithful is this saying and deserving of universal acceptance:

2 Timothy 2:2

All that you have been taught by me in the hearing of many witnesses, you must hand on to trusty men who shall themselves, in turn, be competent to instruct others also.

2 Timothy 2:25

He must speak in a gentle tone when correcting the errors of opponents, in the hope that God will at last give them repentance, for them to come to a full knowledge of the truth

2 Timothy 4:3

For a time is coming when they will not tolerate wholesome instruction, but, wanting to have their ears tickled, they will find a multitude of teachers to satisfy their own fancies;

Titus 1:11

You must stop the mouths of such men, for they overthrow the faith of whole families, teaching what they ought not, just for the sake of making money.

Titus 2:7-8

and above all make your own life a pattern of right conduct, having in your teaching no taint of insincerity, but a serious tone,

Jude 1:3

Dear friends, since I am eager to begin a letter to you on the subject of our common salvation, I find myself constrained to write and cheer you on to the vigorous defense of the faith delivered once for all to God's people.

Revelation 2:25

Only that which you already possess, cling to until I come.

Revelation 3:3

Be mindful, therefore, of the lessons you have received and heard. Continually lay them to heart, and repent. If, however, you fail to rouse yourself and keep awake, I shall come upon you suddenly like a thief, and you will certainly not know the hour at which I shall come to judge you.

Revelation 3:11

I am coming quickly: cling to that which you already possess, so that your wreath of victory be not taken away from you.

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.

General references

Bible References

Fast

1 Timothy 1:15
Faithful is the saying, and deserving of universal acceptance, that Christ Jesus came into the world to save sinners; among whom I stand foremost.
1 Timothy 4:9
Faithful is this saying and deserving of universal acceptance:
1 Timothy 6:3
So teach and exhort. If any one is a teacher of any other kind of doctrine, and refuses assent to wholesome instructions--those of our Lord Jesus Christ--and the teaching that harmonizes with true godliness,
2 Timothy 2:2
All that you have been taught by me in the hearing of many witnesses, you must hand on to trusty men who shall themselves, in turn, be competent to instruct others also.

Sound

Titus 2:1
But as for you, you must speak in a manner that befits wholesome teaching.
1 Timothy 1:10
fornicators, sodomites, slave-dealers, liars and false witnesses; and for whatever else is opposed to wholesome teaching
1 Timothy 6:3
So teach and exhort. If any one is a teacher of any other kind of doctrine, and refuses assent to wholesome instructions--those of our Lord Jesus Christ--and the teaching that harmonizes with true godliness,
2 Timothy 4:3
For a time is coming when they will not tolerate wholesome instruction, but, wanting to have their ears tickled, they will find a multitude of teachers to satisfy their own fancies;

To convince

Titus 1:11
You must stop the mouths of such men, for they overthrow the faith of whole families, teaching what they ought not, just for the sake of making money.
Acts 18:28
for he powerfully and in public overcame the Jews in argument, proving to them from the Scriptures that Jesus is the Christ.
1 Corinthians 14:24
If, on the other hand, every one is prophesying and an unbeliever or an ungifted man comes in, he is convicted by all and closely examined by all,
2 Timothy 2:25
He must speak in a gentle tone when correcting the errors of opponents, in the hope that God will at last give them repentance, for them to come to a full knowledge of the truth

General references

Titus 2:1
But as for you, you must speak in a manner that befits wholesome teaching.