Symbols of hearts are found in emails and posts on the computer. So much so that “I heart” is equivalent to “I love” in computer text. These Bible verses are full of heart!
Deuteronomy 6:5
Love the LORD your God with all your heart and with all your soul and with all you strength.
Psalm 119:11
I have hidden your word in my heart that I might not sin against you.
Proverbs 15:13
A happy heart makes the face cheerful.
Matthew 5:8
Blessed are the pure in heart, for they will see God.John 14:1
John 14:1
Do not let your heart be troubled.
Ephesians 5:19
Sing and make music in the your heart to the Lord.
Colossians 3:23
Whatever you do, work at it with all your heart, as working for the Lord, not for men.
And there are many more. A Bible with a concordance helps a reader search for any subject.
I hope you have many verses that you “heart.”
Personal experience
Bible, New International Version