Remember that Jesus Christ, descended from David, was raised from the dead according to my gospel:
Read Chapter 2
Augustine of Hippo
Let us believe in Christ crucified; but in him as the one who rose again on the third day. That’s the faith that distinguishes us from them, distinguishes us from the pagans, distinguishes us from the Jews—the faith by which we believe that Jesus Christ has risen from the dead. The apostle says to Timothy, “Remember that Jesus Christ has risen from the dead, of the seed of David, according to my gospel.” And again the same apostle, “Because if you believe in your heart,” he says, “that Jesus is Lord, and confess with your lips that God raised him from the dead, you will be saved.” This is the salvation, the wellbeing, the safety and the soundness, which I discussed yesterday. Whoever believes and is baptized will be saved. I know that you believe; you will be saved. Hold firmly in your hearts, profess it with your lips, that Christ has risen from the dead.
On what account is this mentioned? It is directed chiefly against the heretics, at the same time to encourage Timothy, by showing the advantage of sufferings, since Christ, our Master, Himself overcame death by suffering. Remember this, he says, and you will have sufficient comfort. Remember that Jesus Christ, of the seed of David, was raised from the dead. For upon that point many had already begun to subvert the dispensation, being ashamed at the immensity of God's love to mankind. For of such a nature are the benefits which God has conferred upon us, that men were ashamed to ascribe them to God, and could not believe He had so far condescended. According to my Gospel. Thus he everywhere speaks in his Epistles, saying according to my Gospel, either because they were bound to believe him, or because there were some who preached another Gospel. Galatians 1:6
Why is this mentioned? It is directed chiefly against the heretics, at the same time to encourage Timothy, by underscoring the divine blessings accompanying sufferings, since Christ, our Master, himself overcame death by suffering…. For upon this point many had already begun to subvert God’s providence, being ashamed at the immensity of God’s love for humanity. For of such a nature are the benefits which God has conferred upon us that we were embarrassed to ascribe them to God and could not believe he had so far condescended.
Adually descending to the birth of Christ, what else have we here described than the very flesh of Abraham and of David conveying itself down, step after step, to the very virgin, and at last introducing Christ,-nay, producing Christ Himself of the virgin? Then, again, there is Paul, who was at once both a disciple, and a master, and a witness of the selfsame Gospel; as an apostle of the same Christ, also, he affirms that Christ "was made of the seed of David, according to the flesh"