Romans 16:23
Gaius, my host and [the host] of the whole church, greets you. Erastus the city treasurer greets you, and Quartus the brother.
Acts 19:22
So [after] sending two of those who were assisting him, Timothy and Erastus, to Macedonia, he himself stayed [some] time in Asia.
1 Corinthians 1:14
I give thanks that I baptized none of you except Crispus and Gaius,
2 Timothy 4:20
Erastus remained in Corinth, but Trophimus I left behind in Miletus [because he] was sick.
3 John 1:1-6
The elder, to Gaius the beloved, whom I love in [the] truth.
Acts 19:29
And the city was filled with the tumult, and with one purpose they rushed into the theater, seizing Gaius and Aristarchus, Macedonians [who were] traveling companions of Paul.
Acts 20:4
And Sopater [son] of Pyrrhus from Berea, and Aristarchus and Secundus from Thessalonica, and Gaius from Derbe, and Timothy, and Tychicus and Trophimus from Asia, were accompanying him.