Passage
for with the heart doth <FI>one<Fi> believe to righteousness, and with the mouth is confession made to salvation;
for with the heart doth <FI>one<Fi> believe to righteousness, and with the mouth is confession made to salvation;
Romans 10:8 But what doth it say? `Nigh thee is the saying--in thy mouth, and in thy heart:' that is, the saying of the faith, that we preach;
Romans 10:9 that if thou mayest confess with thy mouth the Lord Jesus, and mayest believe in thy heart that God did raise him out of the dead, thou shalt be saved,
Romans 10:10 for with the heart doth <FI>one<Fi> believe to righteousness, and with the mouth is confession made to salvation;
Romans 10:11 for the Writing saith, `Every one who is believing on him shall not be ashamed,'
Romans 10:12 for there is no difference between Jew and Greek, for the same Lord of all <FI>is<Fi> rich to all those calling upon Him,
The verse centers on "heart", "doth", "believe", "righteousness", "mouth", "confession", and "salvation". It is saying that the verse draws attention to "heart" and "doth", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "that if thou mayest confess with thy..." into verse 11's "for the Writing saith Every one who...", so "heart" and "doth" belong inside that flow. In Romans context, the local focus is righteousness by faith, union with Christ, life in the Spirit, and God's covenant faithfulness.
A plain takeaway is to answer the verse's own emphasis on "heart" and "doth" with trust shaped by these words, not by a vague optimism outside the passage.