Acts 22:5
As also the high priest doth bear me witness, and all the estate of the elders: from whom also I received letters unto the brethren, and went to Damascus, to bring them which were there bound unto Jerusalem, for to be punished.
Cross-references
Acts 9:1 describes Saul's journey to the high priest — the same event Paul recounts here, confirming his persecuting zeal.
Acts 9:2 records Saul requesting letters to arrest Christians in Damascus — directly matching the letters and bonds Paul mentions here.
Acts 9:14 quotes Ananias saying Saul has authority from chief priests to bind Christians — confirming the same commission Paul references.
Acts 26:10 expands on Paul's persecution, including imprisoning saints with chief priests' authority — echoing the authority claimed here.
Acts 26:12 restates Paul's Damascus journey with chief priests' commission — a parallel account of the same mission described here.
In Acts 26:5, Paul again claims the Jews know his Pharisaic background — echoing this appeal to his credentials.
In 1 Corinthians 15:9, Paul confesses he persecuted the church — the same action described in this verse.
In Galatians 1:13, Paul recounts his intense persecution of the church, mirroring this testimony.