Acts 26:4

My manner of life, etc. - The apostle means to state that, though born in Tarsus, he had a regular Jewish education, having been sent up to Jerusalem for that purpose; but at what age does not appear; probably about twelve, for at this age the male children were probably brought to the annual solemnities. See on Luke 2:41 (note).

My manner of life - My opinions, principles, and conduct.

From my youth - Paul was born in Tarsus; but at an early period he had been sent to Jerusalem for the purpose of education in the school of Gamaliel, Acts 22:3.

Which was at the first - Which was from the beginning; the early part of which; the time when the opinions and habits are formed.

Know all the Jews - It is not at all improbable that Paul was distinguished in the school of Gamaliel for zeal in the Jewish religion. The fact that he was early entrusted with a commission against the Christians Acts 9 shows that he was known. Compare Philippians 3:4-6. He might appeal to them, therefore, in regard to the early part of his life, and, doubtless, to the very men who had been his violent accusers.

26:4 From my youth, which was from the beginning - That is, which was from the beginning of my youth.