Acts 26:5

“Which knew me from the beginning, etc.] From his youth, from his first coming to Jerusalem: if they would testify; what they know, and speak out the truth of things, they must say, that after the most straitest sect of our religion I lived a Pharisee; there were three sects of religion among the Jews, the Pharisees, Sadducees, and Essenes; the first of these was the most exact, and came nearest to the truth of doctrine, and was the strictest as to outward holiness of life and conversation, and of this sect the apostle was; and according to it he lived, and that in such a manner, as not to be charged with any notorious crime; and indeed in his own, and very likely in the opinion of others, he…”

“if they would--"were willing to" testify--but this, of course, they were not, it being a strong point in his favor. after the most straitest--"the strictest." sect--as the Pharisees confessedly were. This was said to meet the charge, that as a Hellenistic Jew he had contracted among the heathen lax ideas of Jewish peculiarities.”

“Which knew me - Who were well acquainted with me. From the beginning - ἄνωθεν anōthen. Formerly; or from the very commencement of my career. Who were perfectly apprised of my whole course. If they would testify - If they would bear witness to what they know. That after the most straitest - The most rigid; the most strict, not only in regard to the written Law of God, but to the traditions of the elders. Paul himself elsewhere testifies Philippians 3:4-6 that he had enjoyed all the advantages of birth and training in the Jewish religion, and that he had early distinguished himself by his observance of its rites and customs. Sect - Division or party. I lived a Pharisee - I lived in…”

“If they would testify - But they would not, for they well knew what weight his former life must add to his present testimony. Acts 26:6”

“if: Act 22:5 that: Act 23:6; Phi 3:5, Phi 3:6 sect: Act 24:5, Act 24:14 Acts 26:6”