Abraham was an old man when he received the startling command from God to offer up his son Isaac for a burnt offering. Abraham was considered an old man even in his generation. The ardor of his youth had faded away. It was no longer easy for him to endure hardships and brave dangers. In the vigor of youth man may breast the storm with a proud consciousness of strength and rise above discouragements that would cause his heart to fail later in life, when his steps are faltering toward the grave.1TT 484.1

But in His providence God reserved His last most trying test for Abraham until the burden of years was heavy upon him and he longed for rest from anxiety and toil. The Lord spoke unto him, saying: “Take now thy son, thine only son Isaac, whom thou lovest,” “and offer him ... for a burnt offering.” Genesis 22:2. The heart of the old man stood still with horror. The loss of such a son by disease would have been most heart-rending to the fond father, it would have bowed his whitened head with sorrow; but now he is commanded to shed the precious blood of that son with his own hand. It seemed to him a fearful impossibility.1TT 484.2

Yet God had spoken, and His word must be obeyed. Abraham was stricken in years, but this did not excuse him from duty. He grasped the staff of faith and in dumb agony took by the hand his child, beautiful in the rosy health of youth, and went out to obey the word of God. The grand old patriarch was human; his passions and attachments were like ours, and he loved his boy, who was the solace of his old age, and to whom the promise of the Lord had been given.1TT 484.3

But Abraham did not stop to question how God's promises could be fulfilled if Isaac were slain. He did not stay to reason with his aching heart, but carried out the divine command to the very letter, till, just as the knife was about to be plunged into the quivering flesh of the child, the word came: “Lay not thine hand upon the lad;” “for now I know that thou fearest God, seeing thou hast not withheld thy son, thine only son from Me.” Verse 12.1TT 485.1

This great act of faith is penciled on the pages of sacred history to shine forth upon the world as an illustrious example to the end of time. Abraham did not plead that his old age should excuse him from obeying God. He did not say: “My hairs are gray, the vigor of my manhood is gone; who will comfort my waning life when Isaac is no more? How can an aged father spill the blood of an only son?” No; God had spoken, and man must obey without questioning, murmuring, or fainting by the way.1TT 485.2

We need the faith of Abraham in our churches today, to lighten the darkness that gathers around them, shutting out the sweet sunlight of God's love and dwarfing spiritual growth. Age will never excuse us from obeying God. Our faith should be prolific of good works, for faith without works is dead. Every duty performed, every sacrifice made in the name of Jesus, brings an exceeding great reward. In the very act of duty, God speaks and gives His blessing. But He requires of us an entire surrender of the faculties. The mind and heart, the whole being, must be given to Him, or we fall short of becoming true Christians.1TT 485.3

God has withheld nothing from man that can secure to him eternal riches. He has clothed the earth with beauty and furnished it for his use and comfort during his temporal life. He has given His Son to die for the redemption of a world that had fallen through sin and folly. Such matchless love, such infinite sacrifice, claims our strictest obedience, our holiest love, our unbounded faith. Yet all these virtues, exercised to their fullest extent, can never be commensurate with the great sacrifice that has been offered for us.1TT 485.4

The Efficacy of Christ's Blood

Unquestioning Obedience