John Gill Commentary Acts 10:22

"And they said, Cornelius a centurion, a righteous man and one that feareth God, and well reported of by all the nation of the Jews, was warned [of God] by a holy angel to send for thee into his house, and to hear words from thee." — Acts 10:22 (ASV)

And they said, Cornelius, the centurion
A certain person, by name Cornelius, a Roman or Italian, as his name shows, and by office a "centurion", that was over a hundred soldiers.

A just man; before God, and in his sight, through the imputation of Christ's righteousness to him; and who was a new man, created in righteousness and true holiness; and lived soberly, righteously, and godly, and did justice between man and man; and so was just in the sight of men, which was very rare in a Gentile, and in a soldier:

and one that fears God ;
the true God, the God of Israel, and worshipped him, both internally and externally; for both sorts of worship are included in the fear of God:

and of good report among all the nation of the Jews ;
that knew anything of him, especially at Caesarea, where many Jews, and even many of their most celebrated doctors lived.

And this is the rather observed, to induce Peter, a Jew, to go along with them to him, since his character was so very good, and he was in so much credit and esteem with the people; for he must be something extraordinary to have their good word, who had such an abhorrence of uncircumcised Gentiles in general: this man, they add,

was warned from God by a holy angel to send for you into his house ;
they intimate hereby, that he did not send for him of himself, he was not led to it by any fancy of his own, or any curiosity in him; nor should he have presumed to have used such freedom with Peter, but that he had some instructions from God himself, who had sent a holy angel to him, and had ordered him to send men to Joppa, and fetch Peter from there to his house, for the end next mentioned:

and to hear words from you :
the doctrines of the Gospel, and the ordinances of it: that being taught by the one, he and his might submit to the other.