Romans 16:23
Gaius, my host, and host of the whole church here, wishes to be remembered to you. Erastus, the treasurer of the city, wishes to be remembered to you, and so does our brother Quartus.
Acts 19:22
So he sent off to Macedonia two of his assistants, Timothy and Erastus, while he stayed on for a while in Asia.
1 Corinthians 1:14
I am thankful that I baptized none of you but Crispus and Gaius,
2 Timothy 4:20
Erastus stayed in Corinth; I left Trophimus sick at Miletus.
3 John 1:1-6
The Elder to the dearly beloved Gaius, whom I truly love.
Acts 19:29
So the whole city was thrown into confusion and with one impulse the people rushed into the theatre and dragged with them two Macedonians, Gaius and Aristarchus, Paul's traveling companions.
Acts 20:4
He had as companions Sopater, the son of Pyrrhus, from Berea, Aristarchus and Secundus from Thessalonica, Gaius from Derbe, Timothy, and Tychicus and Trophimus from the province of Asia.