Acts 20:31

Watch therefore, remembering, that three years night and day I ceased not admonishing you with tears.

1 Thessalonians 5:14

And we, exhort you, brethren, admonish the unruly, comfort the small-souled people, support the weak, be longsuffering toward all.

Treasury of Scripture Knowledge

Summary

And what cause soever shall come to you of your brethren that dwell in their cities, between blood and blood, between law and commandment, statutes and judgments, ye shall even warn them that they trespass not against the LORD, and so wrath come upon you, and upon your brethren: this do, and ye shall not trespass.

Bible References

Warn them

Acts 20:31
Watch therefore, remembering, that three years night and day I ceased not admonishing you with tears.
1 Thessalonians 5:14
And we, exhort you, brethren, admonish the unruly, comfort the small-souled people, support the weak, be longsuffering toward all.