I think Paul disagrees with you,
Rom 10:8 But what does it say? "The word is near you, in your mouth and in your heart" (that is, the word of faith that we proclaim);
Rom 10:9 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved.
Rom 10:10 For with the heart one believes and is justified, and with the mouth one confesses and is saved.
Rom 10:11 For the Scripture says, "Everyone who believes in him will not be put to shame."
Rom 10:12 For there is no distinction between Jew and Greek; for the same Lord is Lord of all, bestowing his riches on all who call on him.
Rom 10:13 For "everyone who calls on the name of the Lord will be saved."
Rom 10:14 How then will they call on him in whom they have not believed? And how are they to believe in him of whom they have never heard? And how are they to hear without someone preaching?
Rom 10:15 And how are they to preach unless they are sent? As it is written, "How beautiful are the feet of those who preach the good news!"
Rom 10:16 But they have not all obeyed the gospel. For Isaiah says, "Lord, who has believed what he has heard from us?"
Rom 10:17 So faith comes from hearing, and hearing through the word of Christ.