Acts 21:19

And when he had saluted them, he declared particularly what things God had wrought among the Gentiles by his ministry.

When Paul and his companions reached Jerusalem, the brethren of the congregation received them with joy, much to the encouragement of them all. The next day there was a more formal meeting, when Paul took his companions and presented them to James, the brother of the Lord, the most prominent elder of the congregation. All the other elders of the congregation were also present for the interview. After saluting them all, Paul began to narrate, literally, to give an account, one by one, in careful detail, what the Lord had done among the Gentiles through his ministry. This referred especially to the success of the second and of the third journey, for the brethren in Jerusalem had heard the story of the first journey, chap. 15:4. Very likely Paul's recital also brought out the fact that he had lived up to the resolutions passed by the conference in Jerusalem some eight or nine years before. Reports from the mission-fields should always prove most interesting to all the Christian brethren, and should stimulate interest in the work.