2 Timothy 2:8

I. To encourage Timothy in suffering, the apostle puts him in mind of the resurrection of Christ (Ti2 2:8): Remember that Jesus Christ, of the seed of David, was raised from the dead, according to my gospel. This is the great proof of his divine mission, and therefore a great confirmation of the truth of the Christian religion; and the consideration of it should make us faithful to our Christian profession, and should particularly encourage us in suffering for it. Let suffering saints remember this. Observe, 1. We are to look to Jesus, the author and finisher of our faith, who, for the joy that was set before him, endured the cross, despised the shame, and has now sat down at the right hand of the throne of God, Heb 12:2. 2. The incarnation and resurrection of Jesus Christ, heartily believed and rightly considered, will support a Christian under all sufferings in the present life. II. Another thing to encourage him in suffering was that he had Paul for an example. Observe, 1. How the apostle suffered (Ti2 2:9): Wherein I suffer as an evil-doer; and let not Timothy the son expect any better treatment than Paul the father.

— Matthew Henry's Concise Commentary (public domain)

Rather as Greek, "Remember Jesus Christ, raised from the dead." Remember Christ risen, so as to follow Him. As He was raised after death, so if thou wouldest share His risen "life," thou must now share His "death" (Ti2 2:11). The Greek perfect passive participle, implies a permanent character acquired by Jesus as the risen Saviour, and our permanent interest in Him as such. Christ's resurrection is put prominently forward as being the truth now assailed (Ti2 2:18), and the one best calculated to stimulate Timothy to steadfastness in sharing Paul's sufferings for the Gospel's sake (see on Ti2 2:3). of the seed of David--The one and only genealogy (as contrasted with the "endless genealogies," Ti1 1:4) worth thinking of, for it proves Jesus to be the Messiah. The absence of the article in the Greek, and this formula, "of the seed of David" (compare Rom 1:3), imply that the words were probably part of a recognized short oral creed. In His death He assured us of His humanity; by His resurrection, of His divinity. That He was not crucified for His own sin appears from His resurrection; that He was crucified shows that He bore sin, on Him, though not in Him. my gospel--that which I always taught.

— Jamieson-Fausset-Brown Commentary (public domain)