There is a distinct difference between what you wish for and what you hope for. A wish is a desire that something you want will take place, but with hope you are expecting your desire to come to pass.
Abraham was given a promise by God that one day he would become a father of many nations. He believed in that promise, and lived in hope because he was fully persuaded that if God made the promise, He would keep His word and perform it. If Abraham had simply wished that God would keep His promise, somewhere during those 25 years that he had to wait on God, he would have come to the conclusion that God had forgotten about him. The fact that he continued to believe in spite of the physical condition of not only his body but also of his wife Sarah, is evidence that he did not stagger at the promise of God. Abraham grew strong in his faith, and because of his faith in God, he received what God had promised.
Abraham’s story was written for our benefit. If the children of God can become fully persuaded that God is faithful and will keep His promises, within the fullness of time, they will receive what they hope for. Your hope, your faith in God will not only bless your life but it has the capability of blessing your children and your children’s children. The question you must ask yourself is “am I willing to wait on God?” Waiting is one of the hardest things you will have to do in this life, but with the help of the Holy Spirit you can and must do it. If your faith is strong enough that you are fully persuaded that God will do what He has promised to do, the wait will be a small sacrifice compared to the glory that will be revealed to you all in God’s time.