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 describes Paul's former life in Judaism and persecution — details of the manner of life he alludes to here.

Philippians 3:5 lists Paul's Jewish credentials — circumcision, tribe, Pharisee — specifying his manner of life from youth.

2 Timothy 3:10 recounts Timothy following Paul's manner of life — the same conduct Paul says is known from his youth.