Mark 12:27-31

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.’

The second is this: ‘You shall love your neighbor as yourself.’ There is no other commandment greater than these.”