How then shall they call on Him in whom they have not believed? And how shall they believe in Him of whom they have not heard? And how shall they hear without a preacher? 15 And how shall they preach unless they are sent? As it is written:
“How beautiful are the feet of those who preach the gospel of peace,
Who bring glad tidings of good things!”
16 But they have not all obeyed the gospel. For Isaiah says, “Lord, who has believed our report?” 17 So then faith comes by hearing, and hearing by the word of God. — Romans 10:14-17.
Given that whoever calls on Him will know His salvation, the logical question is asked as to how unbelievers are going to hear of Christ in order to call upon Him. The answer is that preachers of the gospel must be sent to tell them, always bearing in mind that even then there will be many who do not obey the gospel and turn to Christ, though the offer is open to them. The simple conclusion is that saving faith is produced by hearing God’s Word. [The Bible Panorama.]