Romans 10:5-13 5For Moses writes about the righteousness that is based on the law, that the person who does the commandments shall live by them. 6But the righteousness based on faith says, "Do not say in your heart, 'Who will ascend into heaven?'" (that is, to bring Christ down) 7or "'Who will descend into the abyss?'" (that is, to bring Christ up from the dead).
8But 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); 9because, 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. 10For with the heart one believes and is justified, and with the mouth one confesses and is saved. 11For the Scripture says, "Everyone who believes in him will not be put to shame."
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. 13For "everyone who calls on the name of the Lord will be saved."
Paul’s opinion in his letter to the Romans about salvation seems to support your view.
You would agree, I trust, that Jesus’ words out of his own mouth trump one of Paul’s letters, no?
Matthew 7:21