6 And now, my beloved son, notwithstanding their hardness, let us labor diligently; for if we should cease to labor, we should be brought under condemnation; for we have a labor to perform whilst in this tabernacle of clay, that we may conquer the enemy of all righteousness, and rest our souls in the kingdom of God.
25 My son, be faithful in Christ; and may not the things which I have written grieve thee, to weigh thee down unto death; but may Christ lift thee up, and may his sufferings and death, and the showing his body unto our fathers, and his mercy and long-suffering, and the hope of his glory and of eternal life, rest in your mind forever.

I love the message of hope from a father to his son. Mormon wanted his son to know that no matter what happened, he should continue onward with hope. Even when there is no cause for hope, we must continue to act diligently and to do the best we can. We must continue to act in faith. We must continue to be unyielding in our efforts. If we yield, we are hurting others and hurting ourselves.
If we remain faithful in Christ, then there is a promise that we will overcome Christ. What’s more, our faith is far more likely to help lift others out. Loss of faith weakens our effectiveness and our ability to serve others effectively.