Acts 26:4
My manner of life from my youth, which was at the first among mine own nation at Jerusalem, know all the Jews;
Cross-references
Acts 22:3
Parallel
Acts 22:3 provides specific details of Paul's upbringing — born in Tarsus, educated under Gamaliel — expanding on his manner of life here.
Romans 11:1
Parallel
Romans 11:1 affirms Paul's Jewish identity as an Israelite from Benjamin — directly ties to his life among his own nation.
Galatians 1:13
Parallel
Galatians 1:13 describes Paul's former life in Judaism and persecution — details of the manner of life he alludes to here.
Philippians 3:5
Parallel
Philippians 3:5 lists Paul's Jewish credentials — circumcision, tribe, Pharisee — specifying his manner of life from youth.
2 Timothy 3:10
Parallel
2 Timothy 3:10 recounts Timothy following Paul's manner of life — the same conduct Paul says is known from his youth.