God's first promised son was symbolic of the ultimate promised Son.
Genesis 21:1-7 The LORD kept his word and did for Sarah exactly what he had promised. 2 She became pregnant, and she gave birth to a son for Abraham in his old age. This happened at just the time God had said it would. 3 And Abraham named their son Isaac.
4 Eight days after Isaac was born, Abraham circumcised him as God had commanded. 5 Abraham was 100 years old when Isaac was born.
6 And Sarah declared, “God has brought me laughter. All who hear about this will laugh with me. 7 Who would have said to Abraham that Sarah would nurse a baby? Yet I have given Abraham a son in his old age!”
A baby usually brings great joy to the family and to their friends, everybody wants to see the baby and bring gifts to celebrate the new life, but imagine the extra amount of excitement that is experienced when the baby's arrival is a long awaited miracle.
When Issac was born, it was the end of a very great sadness that Abraham and Sarah experienced as they failed to get pregnant over and over again for probably 70 or 80 years of marriage. It was even more heartbreaking to be promised a child but after 25 years the promise was still not fulfilled.
Imagine the heartbreak that the couple had when they attempted to help God with the miracle baby through human effort. Hagar became pregnant and Ishmael was born but instead of joy this only brought more trouble and heartache.
Reactions To The Promised Child
Sarah couldn't be happier, all of those years of sadness and disappointment are over, the promised son has arrived and the pain and stigma of being childless is gone. Over the years, Sarah was reminded every time she saw Hagar and Ishmael of how wrong she was to try to help God.
Ishmael's reaction to the baby reminds me of the way that his mom Hagar reacted to the news that she was pregnant with Abraham's first child. It seems like Ishmael took after his mom, she got herself in trouble for her treatment of Sarah, so it wasn't a surprise when Ishmael began mistreating Isaac.
We can't be sure about Abraham, his reaction to the newborn isn't clear, the Bible doesn't tell us without a doubt that Abraham was as thrilled as Sarah was. Abraham probably had mixed emotions about Isaac, he may have grown indifferent to the idea of another son, he was willing to substitute God's best and accept the son that he already had as the heir to the promise. (Genesis 15:4, 17:15-21)
I think that part of Sarah's desire to get Hagar and Ishmael out of the house was because she could see that Abraham wasn't as thrilled about the new baby as she was. She must have been hurt as she recalled how happy he was to get his first son and wondered why he isn't so happy this time.
Abraham has already had fourteen years of bonding with Ishmael, he has already taught him how to be a man and he can already see the leadership skills that would make Ishmael the leader of a great nation, the future for Ishmael looked so bright before Isaac came along.
Abraham must have seen the emotional affect that the birth of Isaac had on Ishmael, for fourteen years the boy had the home to himself and his father's love, he may have thought that his mom should replace Sarah, he may have even heard about Abraham's idea to make him the promised son.
Fixing The Past
Genesis 21:10-12 So she turned to Abraham and demanded, “Get rid of that slave woman and her son. He is not going to share the inheritance with my son, Isaac. I won’t have it!” 11 This upset Abraham very much because Ishmael was his son. 12 But God told Abraham, “Do not be upset over the boy and your servant. Do whatever Sarah tells you, for Isaac is the son through whom your descendants will be counted.
Abraham's home must of been full of drama and something drastic was needed to settle things down. He became upset at Sarah's demands to send his first born son away but God made it clear that he wanted Abraham to do it. Our flesh can bring us joys that God may need to strip away from us to give us his joy that is much greater. Abraham's home would never be peaceful with both of these boys growing up under the same roof.
Conflict between brothers is a common occurrence in the Bible, it reminds me of the conflict between Cain and Abel, I have to wonder if protecting Isaac is the reason that Ishmael was sent away so abruptly.
So Hagar is sent away again, this time she has her son with her, but just like the last time she leaves without a lot of provisions and finds herself in a desperate situation. Once again, Hagar felt desperate and helpless, she cannot recall God's promises when she learned about the God who sees her.
It seems odd to me that Abraham was so kind and hospitable to complete strangers back in Genesis 18:1-8 but Hagar was treated poorly both times that she left Abraham's household. There doesn't seem to be any reason that Abraham and Sarah didn't show any kindness or hospitality toward Hagar and Ishmael, they could have been more generous in giving them supplies or even an escort to help them get to a safe place.
I think that it's interesting that Ishmael eventually had twelve sons but his brother Isaac only had two, it would be Isaac's brother Jacob that would have the twelve sons that comprise the tribes of Israel. (Genesis 25:13-15)
It was not through Ishmael the promised seed was to come, but the descendants of Ishmael had every inducement to retain faith in the God of Abraham, who listened to their father’s cry. The fact of being excluded from certain privileges did not involve that they were to be excluded from all privileges.
God knew the heart of Ishmael when he had Abraham send him and his mother away. It didn't take long to prove that Ishmael didn't have a heart for God. Despite all of the blessings of living in Abraham's household and seeing how intimate his father was with God, and despite the blessings that were promised to him, with all of these advantages Ishmael still walked away from God.
Looking To The Future
Galatians 4:22-24 The Scriptures say that Abraham had two sons, one from his slave wife and one from his freeborn wife. 23 The son of the slave wife was born in a human attempt to bring about the fulfillment of God’s promise. But the son of the freeborn wife was born as God’s own fulfillment of his promise. 24 These two women serve as an illustration of God’s two covenants. The first woman, Hagar, represents Mount Sinai where people received the law that enslaved them.
None of the people in this Old Testament story could have understood what was playing out in God's plan and purpose but hundreds of years later the apostle Paul realized the two boys represented the two ways to please God.
God's first promised "son" was symbolic of his real "Son" that would come four hundred plus years later and Ishmael, the son of the servant, is likened to those who are slaves under the bondage of the law while Isaac is likened to those saved by God’s grace and freed from the law through faith in Jesus.
The law is good and living by the law is good but it isn't good enough, virtue and goodness can be lived out for a season but the problem with virtue is that we don't do anything with true virtue and the day will come when we will mess up and the law will be there to show us how bad we are.
Galatians 3:5 I ask you again, does God give you the Holy Spirit and work miracles among you because you obey the law? Of course not! It is because you believe the message you heard about Christ.
I will never follow the law well enough to be qualified to go to Heaven, I can only get there by trusting in Jesus, his work on the cross is far better than any work that I can achieve through keeping the law.
I must have a miracle birth to become a child of God so that I can inherit the riches that are promised to his children. (John 1:11-13 / 2 Corinthians 8:9)
