"The fire and wood are here," Isaac said, "but where is the lamb for the burnt offering?"
Abraham answered, "God himself will provide the lamb for the burnt offering, my son." And the two of them went on together.
Abraham's heart had to be breaking.
Abraham built an altar there and arranged the wood on it. He bound his son Isaac and laid him on the altar. Then he reached out his hand and took the knife to slay his son. An angel of the LORD called out to him from heaven, "Abraham! Abraham!" "Here I am," he replied.
"Do not lay a hand on the boy," he said. "Do not do anything to him. Now I know that you fear God, because you have not withheld from me your son, your only son."
The angel of the LORD called to Abraham from heaven a second time and said, "I swear by myself, declares the LORD, that because you have done this and have not withheld your son, your only son, I will surely bless you and make your descendants as numerous as the stars in the sky and as the sand on the seashore..."
Abraham passed God's test. At the risk of loosing that which was more precious to him than his very own life, he obeyed God.
God fulfilled his promise. The Jews are the direct decedents of Abraham.
God calls us to abandon our own agendas and follow him passionately regardless of the cost. If we will obey, God will bless us beyond our imagination.