For the love of Christ constraineth us; because we thus judge, that if one died for all, then were all dead: And that He died for all, that they which live should not henceforth live unto themselves, but unto Him which died for them, and rose again. – 2 Corinthians 5:14,15

Love has a great constraining power towards the highest form of virtue. Deeds to which a man could not be compelled on the ground of law, men have cheerfully done because of love. Would our brave seamen man the life-boat to obey an Act of Parliament? No, they would indignantly revolt against being forced to risk their lives; but they will do it freely to save their fellow-men. Remember that text of the apostle, “Scarcely for a righteous (or merely just) man will one die yet peradventure,” says he, “for a good (benevolent) man some would even dare to die.” Goodness wins the heart, and one is ready to die for the kind and generous. Look how men have thrown away their lives for great leaders…In several notable instances men have thrown themselves into the jaws of death to save a leader whom they loved. Duty holds the fort, but love casts its body in the way of the deadly bullet. Who would think of sacrificing his life on the ground of law? Love alone counts not life so dear as the service of the beloved. Love to Jesus creates a heroism of which law knows nothing. All the history of the church of Christ, when it has been true to its Lord, is a proof of this.

Kindness also, working by the law of love, has often changed the most unworthy…We have often heard the story of the soldier who had been degraded to the ranks, and flogged and imprisoned, and yet for all that he would get drunk and misbehave himself. The commanding officer said one day, “I have tried almost everything with this man, and can do nothing with him. I will try one thing more.” When he was brought in, the officer addressed him, and said, “You seem incorrigible: we have tried everything with you; there seems to be no hope of a change in your wicked conduct. I am determined to try if another plan will have any effect. Though you deserve flogging and long imprisonment, I shall freely forgive you.” The man was greatly moved by the unexpected and undeserved pardon and became a good soldier. The story wears truth on its brow: we all see that it would probably end so. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1735.cfm