Acts 21:19 And when he had saluted them, he declared particularly what things God had wrought among the Gentiles by his ministry.
Paul excitedly told what God had been doing in his ministry when he talked to other men of God. In this verse he was talking to James and the other elders.
This verse jumped off the page at me because we often are embarrassed to say what God has been doing in our lives and ministry because it can sound too much like bragging. I am sure that it can cross the line into boasting but obviously Paul was eager to tell the other guys what God had been doing in his ministry.
I wanted to share this verse especially with my missionary friends. When you go to churches on deputation or furlough you might be embarrassed to share what God is doing but you, for sure, have Biblical precedence to do so!