Romans 10:14

How then shall they call on him in whom they, have not
believed?
&c.] The apostle having observed, that whoever, Jew or Gentile, believe in the Lord and call upon his name, shall be saved; and that the same Lord was ready and willing to dispense his grace, without any difference to them; suggests, that it was therefore absolutely necessary, that the Gospel should be preached to the Gentiles, as well as to the Jews; that it was the will of God it should be; that what he and others did, was by a divine commission; that they were sent by the Lord to preach the Gospel to them; that hearing they might believe, and so call upon the name of the Lord, and be saved; and therefore the Jews ought not to blame them for so doing, for there was a real necessity for it, since there can be no true calling upon God without faith, no faith without hearing, no hearing without preaching, and no preaching without a divine mission. The first of these is signified by this interrogation. Every man calls upon the God he believes in, and him only; this has been the practice of all men, in all nations; such as have not believed in God and Christ, do not call upon them; it is true indeed, there may be an external invocation of them, where there is no true faith; but then this is not calling upon them in truth and sincerity; as is their faith, so is their calling upon them; as the one is historical, the other is only external; there is no true invocation without faith, or any that is acceptable to God, or of any avail to men; for calling on the name of the Lord, as it ought to be practised in all religious worship, so it includes and every part of worship as done in faith:

and how shall they believe in him of whom they have not heard?
the meaning is, that there is no faith in Christ without hearing of him; as it is in human, so in divine faith, there may be believing without seeing, but not without hearing; so we believe that there were such men as Alexander and Julius Caesar, and other persons now in being, though we never saw them, having heard of them, or had a report made of them, which we have reason to give credit to; so there may be, and is faith in Christ without seeing him with our bodily eyes, though not without hearing of him; for of an unheard of person, there can be no faith in him, because no exercise of thought about him. This is to be understood of outward hearing of the word, and of adult persons only; for that, infants may have the grace of regeneration, and so faith wrought in them by the Spirit of God, without hearing the word, is not to be denied; since as they are capable of the principles of corruption, why not of grace? and also of such persons as have the right and free exercise of the faculties of hearing and speaking, and not of such who never could hear, and speak; for as the Spirit works where, and how he pleases, so he can work faith in the hearts of such persons who never heard the word, and enable them to exercise it on the proper object, and cause them secretly to call upon the name of the Lord, with groans which cannot be uttered. Moreover, this is to be, understood of the ordinary way and means of believing; for though God can, and sometimes does work by other means, and even without any, yet his usual way and method is, to bring men to faith and repentance by the hearing of the word:

and how shall they hear without a preacher?
or there is no hearing without, preaching; there may be reading without it, and this ought to be where there is preaching, to see that what is preached is agreeably to the Scriptures; but there is no hearing the word explained without preaching; explaining the word is preaching. There is no hearing of Christ, and salvation by him, without the preaching of the Gospel; the usual and ordinary way of hearing from God, and of Christ, is by the ministry of the word: this shows not only the necessity and usefulness of the Gospel ministry, but also points out the subject matter of it, which is Christ, and him crucified. They that preach ought to preach concerning the person of Christ, his offices, grace, righteousness, blood, sacrifice and satisfaction, otherwise men may hear the preacher, and not hear Christ.