Mark 12:28-30

28 One of the Torah-teachers came up and heard them engaged in this discussion. Seeing that Yeshua answered them well, he asked him, "Which is the most important mitzvah of them all?"

29 Yeshua answered, "The most important is, `Sh'ma Yisra'el, ADONAI Eloheinu, ADONAI echad [Hear, O Isra'el, the LORD our God, the LORD is one],

30 and you are to love ADONAI your God with all your heart, with all your soul, with all your understanding and with all your strength.'