They asked Jesus to choose just one, but He gave them two.  

Key Verses: 

Matthew 22:34-37 

34 But when the Pharisees heard that he had silenced the Sadducees with his reply, they met together to question him again. 35 One of them, an expert in religious law, tried to trap him with this question: 36 “Teacher, which is the most important commandment in the law of Moses?” 37 Jesus replied, “‘You must love the Lord your God with all your heart, all your soul, and all your mind.’ 38 This is the first and greatest commandment. 39 A second is equally important: ‘Love your neighbor as yourself.’ 40 The entire law and all the demands of the prophets are based on these two commandments.”