The Apostle Paul
2 Thessalonians 1:2BSB·traditional attribution

Grace and peace to you from God our Father and the Lord Jesus Christ.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. The introduction (Th2 1:1, Th2 1:2), in the same words as in the former epistle, from which we may observe that as this apostle did not count it grievous to him to write the same things (Phi 3:1) in his epistles that he had delivered in preaching, so he willingly wrote the same things to one church that he did to another.

Commenting on 2 Thessalonians 1:1-4

Jamieson-Fausset-Brown Reformed @jfbcommentary

from God our Father--So some oldest manuscripts read. Others omit "our."