Acts 19:22
So he sent into Macedonia two of them that ministered to him, Timotheus and Erastus; but he himself stayed in Asia for a season.
Nave's Topical Index—AKJV

2 Timothy 4:20
Erastus stayed at Corinth: but Trophimus have I left at Miletum sick.
Nave's Topical Index—AKJV