John Chrysostom

The rest, however, was without witnesses: "From whom also I received letters unto the brethren, and went to Damascus, to bring them which were there bound unto Jerusalem, for to be punished. And it came to pass, that, as I made my journey, and was come nigh unto Damascus about noon, suddenly there shone from heaven a great light round about me." Why then, these very things ought to have been held worthy of credit, from those that went before: otherwise he would not have undergone such a revolution. …

Homily on Acts 47 ↗

Theophylact of Ohrid

So that they would not think this was an invention, Paul shows that he did everything out of love and zeal, and not out of vainglory.

Commentary on Acts ↗