Acts 2:41 records three thousand Jewish converts at Pentecost — Acts 21:20 similarly notes many thousands have believed, showing ongoing growth.

Acts 4:4 records five thousand believers from early preaching — Acts 21:20 continues this pattern of large numbers of Jewish believers.

Acts 11:18 shows Jewish believers glorifying God over Gentile repentance, directly paralleling their response to Paul's report here.

Acts 15:1 introduces the Judaizer teaching that circumcision is required for salvation, directly connecting to the law-zealous Jewish believers described here.

Acts 15:5 specifically mentions believing Pharisees who insisted Gentiles keep the law, reflecting the same zealous group referenced in this verse.

Acts 15:24 quotes the Jerusalem council's letter disavowing those who troubled Gentiles, which relates to the law-zealous believers causing tension here.

Acts 22:3 shows Paul claiming the same zeal for the law as the Jewish believers here, creating a personal parallel between him and them.

Acts 1:15 numbers the believers at 120 — the myriads here show the explosive growth of the early church from that small start.

Acts 6:11 records false witnesses accusing Stephen of blasphemy against Moses — the same kind of charge Paul now faces from zealous law-keepers.

Acts 11:2 describes circumcised believers criticizing Peter — the same tension over Gentile inclusion that underlies the concern about Paul.

Acts 6:7 also describes the rapid increase of disciples in Jerusalem, including priests, paralleling the many thousands of Jewish believers here.

Galatians 1:14 recounts Paul's former extreme zeal for Jewish traditions, mirroring the zeal of the Jewish believers he now seeks to reassure.

1 Corinthians 9:20 reveals Paul's strategy of becoming like those under the law — explaining the very flexibility that the accusers here misunderstand.

Philippians 3:6 recalls Paul's own former zeal for the law — the same zealous mindset now seen in these Jewish believers.

Romans 10:2 describes Israel's zeal for God without knowledge — a contrast with the believing Jews here who have faith but still zealous for law.