'Convert' in the Bible

The suggestion pleased the whole congregation; and they selected Stephen, a man full of faith [in Christ Jesus], and [filled with and led by] the Holy Spirit, and Philip, Prochorus, Nicanor, Timon, Parmenas, and Nicolas (Nikolaos), a proselyte (Gentile convert) from Antioch.

Also greet the church that meets in their house. Greet my beloved Epaenetus, who is the first convert to Christ from [the west coast province of] Asia [Minor].

and He must not be a new convert, so that he will not [behave stupidly and] become conceited [by appointment to this high office] and fall into the [same] condemnation incurred by the devil [for his arrogance and pride].

let the [latter] one know that the one who has turned a sinner from the error of his way will save that one’s soul from death and cover a multitude of sins [that is, obtain the pardon of the many sins committed by the one who has been restored].