Nowhere in scripture is anyone ever told to just accept Jesus into your heart. Nobody is ever instructed to say a sinner’s prayer. Every actual example of conversion (found only in the book of Acts) is similar and nobody ever is told to accept Jesus into your heart.
Romans 10:9-10 New King James Version (NKJV)
9 that if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved. 10 For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.
