Love Your Neighbor.
And the second, like it, is this: ‘You shall love your neighbor as yourself.’ There is no other commandment greater than these.” Mark 12:31 NKJV
That the second great commandment is, to love our neighbour as ourselves, as truly and sincerely as we love ourselves, and in the same instances, and we must show it by doing as we would be done by. As we must therefore love God better than ourselves, because he is Jehovah, a being infinitely better than we are, and must love him with all our heart, because he is one Lord, and there is no other like him; so we must love our neighbour as ourselves, because he is of the same nature with ourselves; our hearts are fashioned alike, and my neighbour and myself are of one body, of one society, that of the world of mankind; and if a fellow-Christian, and of the same sacred society, the obligation is the stronger. Hath not one God created us? Malachi 2:10. Has not one Christ redeemed us? Well might Christ say, There is no other commandment greater than these; for in these all the law is fulfilled, and if we make conscience of obedience to these, all other instances of obedience will follow of course. - Matthew Henry