"Mercy" is the one great cry of human nature. We dare not ask for justice, we can only plead for mercy. We, who want so much mercy from God, must learn to show mercy to our fellow-men. How can we look to Him for mercy if we never show mercy, how can we ask forgiveness unless we forgive?
It has been objected by the enemies of Christianity that, after all, Jesus offered his followers a reward by way of payment to them for their self-sacrificing lives on earth. What, however, is this reward? Is it not a share in that Divine and glorious life of God, who is all love; a hope of participation in that eternal work of his which will go from blessing to blessing, from glory to glory; a certain expectation of dying only to wake up in his likeness, satisfied? The Eternal had already made a similar promise to his faithful servant Abraham. when he bade him fear not, because here on earth God was his Shield, and after death would be his exceeding great Reward.
[Excerpt from H. J. Wilmot-Buxton & The Pulpit Commentary]