Romans 10:9-10
From Reconciling understandings of Scripture and Science
That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation. (KJV)
because if you confess with your lips that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. For one believes with the heart and so is justified, and one confesses with the mouth and so is saved. (NRSV)
See discussion of how to read culture-bound psychological terms in the Bible at The Language of the Bible with Reference to Natural Things.