The Pharisees went to where Jesus was when they heard how he had refuted the Sadducees. An expert in the Law challenged Jesus asking him, “Which commandment is the most important?”
Jesus answered, “‘Hear, O Israel! The Lord our God is One. Love the Lord your God with all your heart, with all your soul, with all your strength, and with all of your mind.’ This is the first and greatest commandment. The second commandment is like it -‘Love your neighbor as you love yourself.’ There are no commandments greater than these two. All the teachings of the Prophets and the Law base their foundation upon these two commandments.”
The man who questioned him said “You are correct, Teacher! You spoke the truth when you said that there is only One God, and that we are to love God with all of our being, and to love our neighbors as we love ourselves. These practices are far more important that all the burnt offerings and sacrifices.”
Because of the wisdom of his answer, Jesus said to him “You are not far from entering the kingdom of God. You have answered correctly. If you do these things you will live. ”
The authorities did not dare to challenge him any further.
MT 22:34-40, MK 12:28-34, LK 10:25-28