Therefore, my beloved brothers, be you steadfast, unmovable, always abounding in the work of the Lord, for as much as you know that your labor is not in vain in the Lord.
Now we command you, brothers, 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 of us.
Beloved, when I gave all diligence to write to you of the common salvation, it was needful for me to write to you, and exhort you that you should earnestly contend for the faith which was once delivered to the saints.