[Matthew 22:35-40] Then one of them, a lawyer, asked Him a question, testing Him, and saying, “Teacher, which is the great commandment in the law?” Jesus said to him, “‘You shall love the LORD your God with all your heart, with all your soul, and with all your mind.’ This is the first and great commandment. And the second is like it: You shall love your neighbor as yourself.’ On these two commandments hang all the Law and the Prophets.”

[Deuteronomy 6:4-6] Hear, O Israel: The LORD our God, the LORD is one! You shall love the LORD your God with all your heart, with all your soul, and with all your strength. “And these words which I command you today shall be in your heart.

[Deuteronomy 10:12-13] And now, Israel, what does the LORD your God require of you, but to fear the LORD your God, to walk in all His ways and to love Him, to serve the LORD your God with all your heart and with all your soul, and to keep the commandments of the LORD and His statutes which I command you today for your good

[Deuteronomy 30:6] And the LORD your God will circumcise your heart and the heart of your descendants, to love the LORD your God with all your heart and with all your soul, that you may live.

[Luke 10:25-28] “Teacher, what shall I do to inherit eternal life?”
He said to him, “What is written in the law? What is your reading of it?”
So he answered and said, “ ‘You shall love the LORD your God with all your heart, with all your soul, with all your strength, and with all your mind,’ and your neighbor as yourself.’ ” And He said to him, “You have answered rightly; do this and you will live.”