23 Gaius, my host and the host of the whole church, greets you. Erastus, the treasurer of the city, greets you, and Quartus, the brother.
Romans 16:23 Cross References - CAB
Acts 19:22
22 And having sent to Macedonia two of those who were ministering to him, Timothy and Erastus, he himself stayed on for a time in Asia.
Acts 19:29
29 And the whole city was filled with confusion, and they rushed with one purpose into the theater, having seized Gaius and Aristarchus, Macedonians, traveling companions of Paul.
Acts 20:4
4 And Sopater, a Berean, was accompanying him to Asia--also Aristarchus of the Thessalonians, and Secundus, and Gaius of Derbe, and Timothy, and Tychicus and Trophimus, the Asians.
1 Corinthians 1:14
14 I thank God that I baptized none of you except Crispus and Gaius,
2 Timothy 4:20
20 Erastus stayed in Corinth, but Trophimus I have left in Miletus sick.
3 John 1:1-6
1 THE ELDER, To the beloved Gaius, whom I love in truth:
2 Beloved, concerning all things I pray you to prosper and to be healthy, just as your soul prospers.
3 For I rejoiced greatly when the brothers came and witnessed to the truth which is in you, just as you walk in truth.
4 I have no greater joy than these things, that I hear that my children are walking in truth.
5 Beloved, you do faithfully whatever you work for the brothers and for the strangers,
6 who gave testimony concerning your love before the church, with reference to whom you will do well if you send them forth in a manner worthy of God,