34 When the Pharisees heard that Jesus had silenced the Sadducees, they got together in a group. 35 One of them, a lawyer, put him on the spot with this question.
36 ‘Teacher,’ he said, ‘which is the most important commandment in the law?’
37 ‘You must love the Lord your God’, replied Jesus, ‘with all your heart, with all your life, and with all your mind. 38 This is the first commandment, and it’s the one that really matters. 39 The second is similar, and it’s this: You must love your neighbour as yourself. 40 The entire law hangs on these two commandments – and that goes for the prophets, too.’
Jesus, Matthew 22 vv. 34 – 40.
Tom Wright, The New Testament for Everyone