God shall send… That is God shall suffer them to be deceived by lying wonders, and false miracles, in punishment of their not entertaining the love of truth.
2:11. That all may be judged who have not believed the truth but have consented to iniquity.
2:12. But we ought to give thanks to God always for you, brethren, beloved of God, for that God hath chosen you firstfruits unto salvation, in sanctification of the spirit and faith of the truth:
2:13. Whereunto also he hath called you by our gospel, unto the purchasing of the glory of our Lord Jesus Christ.
2:14. Therefore, brethren, stand fast: and hold the traditions, which you have learned, whether by word or by our epistle.
Traditions… See here that the unwritten traditions are no less to be received than their epistles.
2:15. Now our Lord Jesus Christ himself, and God and our Father, who hath loved us and hath given us everlasting consolation and good hope in grace,
2:16. Exhort your hearts and confirm you in every good work and word.
2 Thessalonians Chapter 3
He begs their prayers and warns them against idleness.