God had so done those marvellous works, that they ought to be had in remembrance; and this was said by the apostle, that God might not lose the glory, nor the church the benefit, of any of those great things which God had wrought: otherwise, St. Paul acknowledges that he was the least of the apostles, and not meet to be called an apostle, 1 Corinthians 15:9; and all his power was ministerial, he was only an instrument in God's hand, to be acted by him, as Acts 20:24.
Related Commentaries of Acts 21:19
Acts 21:19
19 And when he had saluted them, he declared particularly what things God had wrought among the Gentiles by his ministry.