Romans 16:23
Gaius, my host and of the whole assembly, salutes you. Erastus, the steward of the city, salutes you, and the brother Quartus.
Acts 19:22
And having sent into Macedonia two of those ministering to him, Timotheus and Erastus, he remained himself awhile in Asia.
1 Corinthians 1:14
I thank God that I have baptised none of you, unless Crispus and Gaius,
2 Timothy 4:20
Erastus remained in Corinth, but Trophimus I left behind in Miletus sick.
3 John 1:1-6
The elder to the beloved Gaius, whom I love in truth.
Acts 19:29
And the whole city was filled with confusion, and they rushed with one accord to the theatre, having seized and carried off with them Gaius and Aristarchus, Macedonians, fellow-travellers of Paul.
Acts 20:4
And there accompanied him as far as Asia, Sopater son of Pyrrhus, a Berean; and of Thessalonians, Aristarchus and Secundus, and Gaius and Timotheus of Derbe, and of Asia, Tychicus and Trophimus.