For with the heart one believes and is justified, and with the mouth one confesses and is saved.
~ Romans 10:10
This is not the order of salvation but a confirmation of what God has already wrought. The heart of a man is in the hands of the Lord (Exo 14:8; Deut 2:30; Ezra 7:27-28; Proverbs 21:1) and it is up to Him to direct him and his thoughts by either enlightening him to salvation through the good news of Jesus (that our sins have been paid for and our work is irrelevant) or hardening his heart to the gospel for God’s glory. Therefore the heart merely reflects that which the Lord has already produced within us through the power of the Holy Spirit and the mouth overflows with that which the heart produces.
In other news, this is my 400th post! Huzzah!