Matthew Poole and continuators on 2 Timothy 4:14

14 Alexander the copper-smith did me much evil : the Lord reward him according to his works .

We read of three Alexanders, one Mark 15.21. the Son of him that bare Christs cross, another Acts 4.6. akin to Annas the High Priest; a third, Acts 19.33. probably the person here meant, for he was an Ephesian, but he at that time was a Disciple of Pauls, as appears there, probably, afterward he Apostatized, and was Excommunicated by Paul, 1 Tim. 1.20. which might possibly provoke him; what harm he did him, and where, whether at Ephesus or Rome, it is not said.

How far it is lawful to pray against our enemies, (as Paul did here against Alexander) see the notes on Psal. 109.6. &c. Ier. 11.20. and 12.3. &c.