Verses with the word erastus in the New Testament (3 verses):

Acts 19:22
So he sent into Macedonia two of them that ministered unto him, Timotheus and Erastus; but he himself stayed in Asia for a season.

Romans 16:23
Gaius mine host, and of the whole church, saluteth you. Erastus the chamberlain of the city saluteth you, and Quartus a brother.

2 Timothy 4:20
Erastus abode at Corinth: but Trophimus have I left at Miletum sick.