King James Bible Dictionary

1. A Macedonian, Paul's fellow-traveller, and his host at Corinth when he wrote his Epistle to the Romans (16:23). He with his household were baptized by Paul (1 Corinthians 1:14). During a heathen outbreak against Paul at Ephesus the mob seized Gaius and Aristarchus because they could not find Paul, and rushed with them into the theatre. Some have identified this Gaius with No. (2).

2. A man of Derbe who accompanied Paul into Asia on his last journey to Jerusalem

3. A Christain of Asia Minor to whom John addressed his third epistle (3 John 1:1).

lord; an earthly man

1. A Macedonian, and a companion of Paul, seized at Ephesus
Acts 19:29

2. A man of Derbe, accompanied Paul from Macedonia
Acts 20:4

3. A Corinthian, whom Paul baptized
Romans 16:23; 1 Corinthians 1:14

4. Man to whom John's third epistle was addressed
3 John 1:1-14

or Cai'us (lord)

1. A Macedonian who accompanied Paul in his travels, and whose life was in danger from the mob at Ephesus. (Acts 19:29) (A.D. 54.)
2. Of Derbe. He went with Paul from Corinth in his last journey to Jerusalem. (Acts 20:4) (A.D. 54.)
3. Of Corinth, whom Paul baptized and who was his host in his second journey in that city. (1 Corinthians 1:14; Romans 16:23) (These are supposed by some to be only one person.)
4. John's third epistle is addressed to Christian of this name. We may possibly identify him with No. 2.