2 Thessalonians 2:15

Therefore, brethren, stand fast, and hold the traditions which you have been taught, whether by word, or our epistle.

1 Corinthians 11:2

Now I praise you, brethren, because you remember me in all things, and keep the ordinances, as I delivered them to you.

1 Corinthians 16:13

Watch, stand fast in the faith, be men, be strong.

2 Thessalonians 2:2

That you be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, that the day of the Lord is at hand.

2 Thessalonians 3:6

Now we command you, brethren, in the name of our Lord Jesus Christ, that you withdraw yourselves from every brother that walks disorderly, and not after the tradition which he received from us.

Romans 16:17

Now I beseech you, brethren, mark them who cause divisions and offenses contrary to the doctrine which you have learned; and avoid them.

1 Corinthians 15:58

Therefore, my beloved brethren, be steadfast, unmovable, always abounding in the work of the Lord, since you know that your labor is not in vain in the Lord.

Philippians 4:1

Therefore, my brethren, dearly beloved and longed for, my joy and crown, so stand fast in the Lord, my dearly beloved.

2 Thessalonians 3:14

And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.

Jude 1:3

Beloved, when I gave all diligence to write unto you of the common salvation, it was necessary for me to write unto you, and exhort you that you should earnestly contend for the faith which was once delivered unto the saints.

Treasury of Scripture Knowledge

Summary

Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.

Bible References

Whether

2 Thessalonians 2:2
That you be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, that the day of the Lord is at hand.
2 Thessalonians 3:14
And if any man obey not our word by this epistle, note that man, and have no company with him, that he may be ashamed.