Just as Ishmael mocked Isaac, the crowds had mocked and persecuted Jesus. Both Isaac and Jesus were born to fulfill a promise. Isaac was the fulfillment of God’s promise to Abraham. Even though both Abraham and Sara were well past child-bearing age, Isaac was born to them. Even though, Mary had never known a man she conceived and brought forth a Son. Jesus was a fulfillment of the promise that God would provide a Redeemer for His people. He would also be a Redeemer and Savior for all who would call upon His Name and accept Him as Lord of their life. Because of that, we who have accepted Jesus are children of the promise. Accepting Jesus and turning from the world, (the slave woman) we are no longer slaves in bondage to our fleshly desires. Even though we sometimes fail, it should be our heart’s desire not to stay fallen and return to our old habits. Jesus died that we might be free from those entanglements.
1 Therefore, since we are surrounded by such a great cloud of witnesses, let us throw off everything that hinders and the sin that so easily entangles. And let us run with perseverance the race marked out for us, 2 fixing our eyes on Jesus, the pioneer and perfecter of faith. For the joy set before him he endured the cross, scorning its shame, and sat down at the right hand of the throne of God. 3 Consider him who endured such opposition from sinners, so that you will not grow weary and lose heart.–Hebrews 12:1-3 (NIV)