Mark 12:26-30

But regarding the fact that the dead rise, have you not read in the book of Moses, in the passage about the burning bush, how God spoke to him, saying, ‘I am the God of Abraham, the God of Isaac, and the God of Jacob’?

He is not the God of the dead, but of the living; you are greatly mistaken.”

One of the scribes came up and heard them arguing, and recognizing that He had answered them well, asked Him, “What commandment is the foremost of all?”

Jesus answered, “The foremost is, ‘Hear, Israel! The Lord is our God, the Lord is one;

and you shall love the Lord your God with all your heart, and with all your soul, and with all your mind, and with all your strength.’