Barnabas is Sent As an Emissary to Jerusalem
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Acts 15:1
Then some men came down from Judea and were teaching the brothers, “Unless you are circumcised according to the custom of Moses, you cannot be saved.”
Galatians 2:1–9
Fourteen years later I went up again to Jerusalem, accompanied by Barnabas. I took Titus along also. / I went in response to a revelation and set before them the gospel that I preach among the Gentiles. But I spoke privately to those recognized as leaders, for fear that I was running or had already run in vain. / Yet not even Titus, who was with me, was compelled to be circumcised, even though he was a Greek.