|Easton's Bible Dictionary|
Reminding, or remembrancer, a Christian of Jerusalem with whom Paul lodged (Acts 21:16). He was apparently a native of Cyprus, like Barnabas (11:19, 20), and was well known to the Christians of Caesarea (4:36). He was an "old disciple" (R.V., "early disciple"), i.e., he had become a Christian in the beginning of the formation of the Church in Jerusalem.
Int. Standard Bible Encyclopedia
na'-son, m'-na'-son (Mnason): All that we know of Mnason is found in Acts 21:16.
(1) He accompanied Paul and his party from Caesarea on Paul's last visit to Jerusalem;
(2) he was a Cyprian;
(3) "an early disciple," an early convert to Christianity, and
(4) the one with whom Paul's company was to lodge.
The "Western" text of this passage is very interesting. Blass, following Codex Bezae (D), the Syriac, reads, for "bringing," etc., "And they brought us to those with whom one should lodge, and when we had come into a certain village we stayed with Mnason a Cyprian, an early disciple, and having departed thence we came to Jerusalem and the brethren," etc. Meyer-Wendt, Page and Rendell render the accepted text, "bringing us to the house of Mnason," etc. However, giving the imperfect transitive of anebainomen, "we were going up" to Jerusalem (21:15), we might understand that the company lodged with Mnason on the 1st night of their journey to Jerusalem, and not at the city itself. " Acts 21:15, they set about the journey; 21:16, they lodged with Mnason on the introduction of the Cesarean disciples; 21:17, they came to Jerus" (Expositor's Greek Testament, in the place cited.).
S. F. Hunter
Mnason (1 Occurrence)
Acts 21:16 Some of the disciples from Caesarea also went with us, bringing one Mnason of Cyprus, an early disciple, with whom we would stay. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)