I urge you, brothers and sisters, to keep an eye on those who create dissensions and hindrances, in opposition to the teaching that you have learned; avoid them.
Therefore, my beloved brothers and sisters, be steadfast, immovable, always excelling in the work of the Lord because you know that in the Lord your labor is not in vain.
not to be quickly shaken in mind or alarmed, either by spirit or by word or by letter, as though from us, to the effect that the day of the Lord is already here.
Now we command you, brothers and sisters, in the name of our Lord Jesus Christ, to keep away from every brother or sister living irresponsibly and not according to the tradition that they received from us.
holding tightly to the trustworthy word of the teaching, so that he may be able both to exhort with sound instruction and to refute those who contradict it.
Beloved, while eagerly preparing to write to you about the salvation we share, I find it necessary to write and appeal to you to contend for the faith that was once and for all handed on to the saints.