Romans 16:23
Gaius, who is host to me and to the whole church, greets you. Erastus the city treasurer and our brother Quartus greet you.
Acts 19:22
So after sending two of his assistants, Timothy and Erastus, to Macedonia, he himself stayed on for a while in the province of Asia.
1 Corinthians 1:14
I thank God that I did not baptize any of you except Crispus and Gaius,
2 Timothy 4:20
Erastus stayed in Corinth. Trophimus I left ill in Miletus.
3 John 1:1-6
From the elder, to Gaius my dear brother, whom I love in truth.
Acts 19:29
The city was filled with the uproar, and the crowd rushed to the theater together, dragging with them Gaius and Aristarchus, the Macedonians who were Paul's traveling companions.
Acts 20:4
Paul was accompanied by Sopater son of Pyrrhus from Berea, Aristarchus and Secundus from Thessalonica, Gaius from Derbe, and Timothy, as well as Tychicus and Trophimus from the province of Asia.