And many of the children of Israel shall he bring back These words show the shamefully dissolute conduct which then prevailed in the Church, for those in whom conversion to God could take place must have been apostates. And certainly corrupt doctrine, depraved morals, and disorderly government, were such as to render it next to a miracle that a very few continued in godliness. But if the ancient Church was so awfully dissolute, it is a frivolous pretext by which the Papists defend their own superstitions, that it is impossible for the Church to err, particularly since they include under this designation not the genuine and elect children of God, but the crowd of the ungodly. But John appears to have more ascribed to him here than belongs to man. For conversion to God renews men to a spiritual life, and therefore is not only God's own work, but surpasses even the creation of men. In this way ministers might seem to be made equal, and even superior, to God viewed as Creator; since to be born again to a heavenly life is a greater work than to be born as mortals on the earth. The answer is easy; for when the Lord bestows so great praise on the outward doctrine, he does not separate it from the secret influence of his Spirit. As God chooses men to be his ministers whose services he employs for the edification of his Church, he at the same time operates by them, through the secret influence of his Spirit, that their labors may be efficacious and fruitful. Wherever Scripture applauds this efficacy in the ministry of men, let us learn to attribute it to the grace of the Spirit, without which the voice of man would have spent itself uselessly in the air. Thus, when Paul boasts that he is a minister of the Spirit, (2-Corinthians 3:6,) he claims nothing separately for himself, as if by his voice he penetrated into the hearts of men, but asserts the power and grace of the Spirit in his ministry. These expressions are worthy of remark; because Satan labors, with amazing contrivance, to lower the effect of doctrine, in order that the grace of the Spirit connected with it may be weakened. The outward preaching, I acknowledge, can do nothing separately or by itself; but as it is an instrument of divine power for our salvation, and through the grace of the spirit an efficacious instrument, what God hath joined together let us not put asunder, (Matthew 19:6.) That the glory of conversion and faith, on the other hand, may remain undivided with God alone, Scripture frequently reminds us that ministers are nothing in themselves; but in such cases he compares them with God, that no one may wickedly steal the honor from God and convey it to them. In short, those whom God, by the aid of the minister, converts to himself, are said to be converted by the minister, because he is nothing more than the hand of God; and both are expressly asserted in this passage. Of the efficacy of the doctrine we have now said enough. That it lies not in the will and power of the minister to bring men back to God, we conclude from this that John did not indiscriminately bring all back, (which he would unquestionably have done, if every thing had yielded to his wish,) but only brought those back whom it pleased the Lord effectually to call. In a word, what is here taught by the angel is laid down by Paul in his Epistle to the Romans, that faith cometh by hearing, (Romans 10:17,) but that those only to whom the Lord inwardly reveals his arm (Isaiah 53:1; John 12:38) are so enlightened as to believe.

Children of Israel - Jews. Descendants of Israel or Jacob.
Shall he turn - By repentance. He shall call them from their sins, and persuade them to forsake them, and to seek the Lord their God.

Many of the children of Israel shall he turn - See this prediction fulfilled, Luke 3:10-18.

And many of the children of Israel shall he (q) turn to the Lord their God.
(q) Shall be a means to bring many to repentance, and they will turn themselves to the Lord, from whom they fell.

And many of the children of Israel,.... To whom only, or at least chiefly, he was sent, and came preaching, and administering the ordinance of baptism; and great multitudes of them flocked unto him, attended on his ministry, believed in his doctrine, and submitted to his baptism, but not all; for some slighted his preaching, and rejected his baptism: however, some there were, and many too, that were converted under his ministry, confessed their sins, and were baptized by him; which verified this prediction:
shall he turn to the Lord their God; not Jehovah, the Father; for though he was the Lord God of the Jews in general, and of those that were turned by John's ministry in a special manner; yet John cannot be said "to go before him", as he is in the next verse; but the Messiah is here meant, who is the Lord Jehovah, and is often so called in the Old Testament; particularly in a prophecy afterwards respected, Isaiah 40:3 a name peculiar to God alone: and who also is called God, as he is frequently with additional epithets; as the mighty God, God over all, the great God, the true God, and eternal life; and our, your, and their God, the God of his covenant people, whether Jews or Gentiles; see Isaiah 25:9. Conversion, which is meant by turning to God, is not man's work, but God's; and is effected by his mighty power, which is only equal to it; but John was to be, and was, an instrument of the conversion of many among the Jews, by preaching the doctrine of repentance towards God, and faith in the Messiah, that was just ready to come: he was the means in the hand of God, of turning many from sin, of bringing them to a true sense of it, and to an hearty and ingenuous confession and acknowledgment of it; and from trusting to, and depending upon, their birth privileges, legal duties, and self-righteousness; and from their gross notions of a temporal Messiah; and of leading them to believe in Christ as a spiritual Saviour, as the Lamb of God, that should take away the sin of the world.

A religious and moral reformer, Elijah-like, he should be (Malachi 4:6, where the "turning of the people's heart to the Lord" is borrowed from 1-Kings 18:37). In both cases their success, though great, was partial--the nation was not gained.

And many of the children of Israel shall he turn - None therefore need be ashamed of "preaching like John the Baptist." To the Lord their God - To Christ.