Mark 12:28 YLT

²⁶  'And concerning the dead, that they rise: have ye not read in the Book of Moses (at The Bush), how God spake to him, saying, I 'am' the God of Abraham, and the God of Isaac, and the God of Jacob;

²⁷  he is not the God of dead men, but a God of living men; ye then go greatly astray.'

²⁸  And one of the scribes having come near, having heard them disputing, knowing that he answered them well, questioned him, 'Which is the first command of all?'

²⁹  and Jesus answered him -- 'The first of all the commands 'is', Hear, O Israel, the Lord is our God, the Lord is one;

³⁰  and thou shalt love the Lord thy God out of all thy heart, and out of thy soul, and out of all thine understanding, and out of all thy strength -- this 'is' the first command;