A proselyte is a Gentile convert to Judaism.
Easton’s Bible Dictionary (1897)
Is used in the LXX. for "stranger" (1 Chr. 22:2), i.e., a comer to Palestine; a sojourner in the land (Ex. 12:48; 20:10; 22:21), and in the New Testament for a convert to Judaism. There were such converts from early times (Isa. 56:3; Neh. 10:28; Esther 8:17). The law of Moses made specific regulations regarding the admission into the Jewish church of such as were not born Israelites (Ex. 20:10; 23:12; 12:19, 48; Deut. 5:14; 16:11, 14, etc.). The Kenites, the Gibeonites, the Cherethites, and the Pelethites were thus admitted to the privileges of Israelites. Thus also we hear of individual proselytes who rose to positions of prominence in Israel, as of Doeg the Edomite, Uriah the Hittite, Araunah the Jebusite, Zelek the Ammonite, Ithmah and Ebedmelech the Ethiopians. In the time of Solomon there were one hundred and fifty-three thousand six hundred strangers in the land of Israel (1 Chr. 22:2; 2 Chr. 2:17, 18). And the prophets speak of the time as coming when the strangers shall share in all the privileges of Israel (Ezek. 47:22; Isa. 2:2; 11:10; 56:3-6; Micah 4:1). Accordingly, in New Testament times, we read of proselytes in the synagogues, (Acts 10:2, 7; 13:42, 43, 50; 17:4; 18:7; Luke 7:5). The "religious proselytes" here spoken of were proselytes of righteousness, as distinguished from proselytes of the gate. The distinction between "proselytes of the gate" (Ex. 20:10) and "proselytes of righteousness" originated only with the rabbis. According to them, the "proselytes of the gate" (half proselytes) were not required to be circumcised nor to comply with the Mosaic ceremonial law. They were bound only to conform to the so-called seven precepts of Noah, viz., to abstain from idolatry, blasphemy, bloodshed, uncleaness, the eating of blood, theft, and to yield obedience to the authorities. Besides these laws, however, they were required to abstain from work on the Sabbath, and to refrain from the use of leavened bread during the time of the Passover. The "proselytes of righteousness", religious or devout proselytes (Acts 13:43), were bound to all the doctrines and precepts of the Jewish economy, and were members of the synagogue in full communion. The name "proselyte" occurs in the New Testament only in Matt. 23:15; Acts 2:10; 6:5; 13:43. The name by which they are commonly designated is that of "devout men," or men "fearing God" or "worshipping God."
Sources: Easton’s Bible Dictionary (1897)
A Biblical and Theological Dictionary
Προσήλυτος, signifies _a stranger_, _a foreigner_; the Hebrew word גר, or נכר, also denotes a stranger, one who comes from abroad, or from another place. In the language נכר of the Jews, those were called by this name who came to dwell in their country, or who embraced their religion, being not Jews by birth. In the New Testament they are called sometimes proselytes, and sometimes Gentiles, fearing God, Acts ii, 5; x, ii, 22; xiii, 16, 50. The Jews distinguish two kinds of proselytes. The first, proselytes of the gate; the others, proselytes of justice or righteousness. The first dwelt in the land of Israel, or even out of that country, and, without obliging themselves to circumcision, or to any other ceremony of the law, feared and worshipped the true God, observing the rules imposed on Noah. These were, according to the rabbins, 1. To abstain from idolatry; 2. From blasphemy; 3. From murder; 4. From adultery; 5. From theft; 6. To appoint just and upright judges; 7. Not to eat the flesh of any animal cut off while it was alive. Maimonides says, that the first six of these precepts were given to Adam, and the seventh to Noah. The privileges of proselytes of the gate were, first, that through holiness they might have hope of eternal life. Secondly, they could dwell in the land of Israel, and share in the outward prosperities of it. It is said they did not dwell in the cities, but only in the suburbs and the villages; but it is certain that the Jews often admitted into their cities, not only proselytes of habitation, but also Gentiles and idolaters, as appears by the reproaches on this account, throughout the Scriptures. Proselytes of justice or of righteousness were those converted to Judaism, who had engaged themselves to receive circumcision, and to observe the whole law of Moses. Thus were they admitted to all the prerogatives of the people of the Lord. The rabbins inform us that, before circumcision was administered to them, and before they were admitted into the religion of the Hebrews, they were examined about the motives of their conversion; whether the change was voluntary, or whether it proceeded from interest, fear, ambition, &c. When the proselyte was well proved and instructed, they gave him circumcision; and when the wound of his circumcision healed, they gave him baptism, by plunging his whole body into a cistern of water, by only one immersion. Boys under twelve years of age, and girls under thirteen, could not become proselytes till they had obtained the consent of their parents, or, in case of refusal, the concurrence of the officers of justice. Baptism in respect of girls had the same effect as circumcision in respect of boys. Each of them, by means of this, received, as it were, a new birth, so that those who were their parents before were no longer regarded as such after this ceremony, and those who before were slaves now became free. Many, however, are of opinion that there appears to be no ground whatever in Scripture for this distinction of proselytes of the gate, and proselytes of righteousness. “According to my idea,” says Dr. Tomline, “proselytes were those, and those only, who took upon themselves the obligation of the whole Mosaic law, but retained that name till they were admitted into the congregation of the Lord as adopted children. Gentiles were allowed to worship and offer sacrifices to the God of Israel in the outer court of the temple; and some of them, persuaded of the sole and universal sovereignty of the Lord Yahweh, might renounce idolatry without embracing the Mosaic law; but such persons appear to me never to be called proselytes in Scripture, or in any ancient Christian writer.” He also observes that “the term _proselytes of the gate_ is derived from an expression frequent in the Old Testament; namely, ‘the stranger that is within thy gates;’ but I think it evident that the strangers were those Gentiles who were permitted to live among the Jews under certain restrictions, and whom the Jews were forbidden ‘to vex or oppress,’ so long as they live in a peaceable manner.” Dr. Lardner says, “I do not believe that the notion of two sorts of Jewish proselytes can be found in any Christian writer before the fourteenth century or later.” Dr. Jennings also observes that “there does not appear to be sufficient evidence in the Scripture history of the existence of such proselytes of the gate, as the rabbins mention; nor, indeed, of any who with propriety can be styled proselytes, except such as fully embraced the Jewish religion.” PROSEUCHÆ. That the Jews had houses, or places for prayer, called ϖροσευχαὶ, appears from a variety of passages in Philo; and, particularly in his oration against Flaccus, he complains that their ϖροσευχαὶ were pulled down, and there was no place left in which they might worship God and pray for Cæsar. Among those who make the synagogues and _proseuchæ_ to be different places, are the learned Mr. Joseph Mede and Dr. Prideaux; and they think the difference consists partly in the form of the edifice; a synagogue, they say, being roofed like our houses or churches; and a _proseucha_ being only encompassed with a wall, or some other mound or enclosure, and open at the top, like our courts. They make them to differ in situation; synagogues being in towns and cities, _proseuchæ_ in the fields, and frequently by the river side. Dr. Prideaux mentions another distinction in respect to the service performed in them. In synagogues, he says, the prayers were offered up in public forms in common for the whole congregation; but in the _proseuchæ_ they prayed, as in the temple, every one apart for himself. And thus our Saviour prayed in the _proseucha_ into which he entered. Yet, after all, the proof in favour of this notion is not so strong, but that it still remains a question with some, whether the synagogues and the _proseuchæ_ were any thing more than two different names for the same place; the one taken from the people’s assembling in them, the other from the service to which they were more immediately appropriated, namely, prayer. Nevertheless, the name _proseuchæ_ will not prove that they were appropriated only to prayer, and therefore were different from synagogues, in which the Scriptures were also read and expounded; since the temple, in which sacrifices were offered, and all the parts of divine service were performed, is called οικος προσευχης, _a house of prayer_, Matt. xxi, 13.
Sources: A Biblical and Theological Dictionary