Mark 12:24-28

And Jesus answering said unto them, Do ye not therefore err, because ye know not the scriptures, neither the power of God?

For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven.

And as touching the dead, that they rise: have ye not read in the book of Moses, how in the bush God spake unto him, saying, I am the God of Abraham, and the God of Isaac, and the God of Jacob?

He is not the God of the dead, but the God of the living: ye therefore do greatly err.

And one of the scribes came, and having heard them reasoning together, and perceiving that he had answered them well, asked him, Which is the first commandment of all?