Acts 17:3

“Opening, etc.] That is, the Scriptures of the Old Testament, explaining and expounding them, giving the true sense of them; so this word is frequently used in Jewish writings f846, as that such a Rabbi jtp, “opened”, such a Scripture: and alleging, that Christ must needs have suffered, and risen again from the dead; he set this matter in a clear light, and made it plain and manifest, from the writings of the Old Testament, that there was a necessity of the Messiah’s suffering and rising from the dead; or otherwise these Scriptures would not have been fulfilled, which have said that so it must be; for these things were not only necessary on account of God’s decrees, and the covenant…”

“Opening and alleging that Christ must needs have suffered, &c.--His preaching, it seems, was chiefly expository, and designed to establish from the Old Testament Scriptures (1) that the predicted Messiah was to be a suffering and dying, and therefore a rising, Messiah; (2) that this Messiah was none other than Jesus of Nazareth.”

“Opening - διανοίγων dianoigōn. See Luke 24:32. The word means to explain or to unfold. It is usually applied to what is shut, as the eye, etc. Then it means to explain what is concealed or obscure. It means here that he explained the Scriptures in their true sense. And alleging - παρατιθέμενος paratithemenos. Laying down the proposition; that is, maintaining that it must be so. That Christ must needs have suffered - That there was a fitness and necessity in his dying, as Jesus of Nazareth had done. The sense of this will be better seen by retaining the word “Messiah.” “That there was a fitness or necessity that the Messiah expected by the Jews, and predicted in their Scriptures, should…”

“Opening: Acts 2:16-36, Act 3:22-26, Act 13:26-39 Christ: Luk 24:26, Luk 24:27, Luk 24:32, Luk 24:44, Luk 24:46; Co1 15:3, Co1 15:4; Th1 1:5, Th1 1:6 this: Act 2:36, Act 9:22, Act 18:28; Gal 3:1 whom I preach: Act 1:4 Acts 17:4”