See Poole on "Matthew 7:12". This is the law of nature the golden rule of all justice, and may also serve for a guide to us to expound the former verses, and some other precepts of charity in this chapter. Men in all these cases should consider what they would be glad, and think reasonable, that others should do to them, were they in their circumstances, and the others had the same ability or advantage to do good to them; and by this they should measure their acts both of justice and charity.
Related Commentaries of Luke 6:31
Luke 6:31
31 And as ye would that men should do to you, do ye also to them likewise.