Barnabas partnered with Paul (co-pastoring etc.)
…he introduced Paul to the church as an ally1
…he made Paul his co-pastor in Antioch for a year
…together they got donations for the Jerusalem church
…together they visited Cyprus etc. to evangelize
…together they appealled to the Jerusalem council
…together they circulated the council's judgment
…they were ready to evangelize more together
…Paul continued praising Barnabas
…Paul and Barnabas’s cousin were partners
Acts 9:26 -- “When he [Paul] came to Jerusalem, he was trying to associate with the disciples; but they were all afraid of him, not believing that he was a disciple. But Barnabas took hold of him and brought him to the apostles and described to them how he had seen the Lord on the road, and that He had talked to him, and how at Damascus he had spoken out boldly in the name of Jesus.” This is especially relevant for this article because Barnabas was a leading and trusted member[?], and so his introduction and endorsement of Paul would be successful.
Paul consulted with them as Jesus-biography authorities to learn from.
• …Paul visited the Jerusalem church/Peter 15 days to learn about Jesus.
• …more forthcoming.
The Jerusalem church celebrated Paul’s conversion.
Galatians 1:21-24 — “I was still unknown by sight to the churches of Judea… they kept hearing, ‘He who once persecuted us is now preaching…’ And they were glorifying God because of me.”
They saw God’s work in Paul and commissioned him.1
Acts 15:25-26 — “[The Jerusalem council wrote a letter to Antioch saying,] it seemed good to us, having become of one mind, to select men to send to you with our beloved Barnabas and Paul, men who have risked their lives for the name of our Lord Jesus Christ.”
Gal 2:7-10 — “[They saw] I had been entrusted with the gospel to the uncircumcised... James and Cephas and John… gave to me… the right hand of fellowship, so that we might go to the Gentiles and they to the circumcised.” (Gal 2:7-10; it says they also invited Paul’s churches to financially help the poor in famined Jerusalem.)
Paul and his churches sent financial relief to the Jerusalem church.1 This is relevant because it was Paul who collected and brought the funds.
Paul reports to and appeals to the Jerusalem church’s council.1
Acts 15:2-30 — “the brethren [at the Antioch church] determined that Paul and Barnabas and some others of them should go up to Jerusalem to the apostles and elders concerning this issue [of circumcision].... [In Jerusalem] they were received by the church... The apostles and the elders came together to look into this matter. ... [James the head leader said] Therefore it is my judgment on circumcision…’ [and] it seemed good to the apostles and the elders …they sent this letter by them, ‘The apostles and the brethren who are elders, to [you]… we have sent Judas and Silas [with this letter and Paul]’ [So Paul and Barnabas etc.] delivered the letter… [and the Antioch church] rejoiced.”