Matthew 7:12 So whatever you wish that others would do to you, do also to them, for this is the Law and the Prophets.
Matthew 22:39-40 And a second is like it: You shall love your neighbor as yourself. (40) On these two commandments depend all the Law and the Prophets.
Mark 12:31 The second is this: ‘You shall love your neighbor as yourself.’ There is no other commandment greater than these.
Luke 6:31-36 And as you wish that others would do to you, do so to them. (32) “If you love those who love you, what benefit is that to you? For even sinners love those who love them. (33) And if you do good to those who do good to you, what benefit is that to you? For even sinners do the same. (34) And if you lend to those from whom you expect to receive, what credit is that to you? Even sinners lend to sinners, to get back the same amount. (35) But love your enemies, and do good, and lend, expecting nothing in return, and your reward will be great, and you will be sons of the Most High, for he is kind to the ungrateful and the evil. (36) Be merciful, even as your Father is merciful.