Gaius (gāˈyəs) [key], in the New Testament. 1 Corinthian Christian, Paul's host. 2 Corinthian baptized by Paul. 3 Companion of Paul, native of Derbe. 4 Macedonian companion of Paul. 5 Christian to whom 3 John is addressed. It is not known which, if any, of these men are identical.
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