'Heart' in the Bible

Because it doesn't go into his heart but into his stomach, and then into the sewer, thereby expelling all foods."

because it's from within, from the human heart, that evil thoughts come, as well as sexual immorality, stealing, murder,

But Jesus told them, "It was because of your hardness of heart that he wrote this command for you.

I tell all of you with certainty, if anyone says to this mountain, "Be lifted up and thrown into the sea,' if he doesn't doubt in his heart but believes that what he says will happen, it will be done for him.

and you must love the Lord your God with all your heart, with all your soul, with all your mind, and with all your strength.'

To love him with all your heart, with all your understanding, and with all your strength, and to love your neighbor as yourself is more important than all the burnt offerings and sacrifices."