Psalm 27:3
Though an host should encamp against me, my heart shall not fear: though war should rise against me, in this will I be confident.
Nave's Topical Index—AKJV

Psalm 112:7
He shall not be afraid of evil tidings: his heart is fixed, trusting in the LORD.
Nave's Topical Index—AKJV

Acts 8:37
And Philip said, If you believe with all your heart, you may. And he answered and said, I believe that Jesus Christ is the Son of God.
Nave's Topical Index—AKJV

Romans 6:17
But God be thanked, that you were the servants of sin, but you have obeyed from the heart that form of doctrine which was delivered you.
Nave's Topical Index—AKJV

Romans 10:10
For with the heart man believes to righteousness; and with the mouth confession is made to salvation.
Nave's Topical Index—AKJV