Genesis TwentyOne - Gracious Promise Keeper

9 Now Sarah saw the son of Hagar the Egyptian, whom she had
borne to Abraham, mocking. 10 Therefore she said to Abraham,
“Drive out this maid and her son, for the son of this maid shall not be an heir with
my son Isaac.” 11 The matter distressed Abraham greatly because of his son. 
12 But God said to Abraham, “Do not be distressed because of the lad and your maid; 
whatever Sarah tells you, listen to her, for through Isaac your descendants shall be named.

Genesis 21:15-19

God was gracious to Abraham. Sarah on just grounds demanded that the other woman and her son be driven out of the protection and care of the people of Abraham. Thinking of sending his child out distressed Abraham greatly yet God declared to not be distressed and to do whatever Sarah told him to do. Assuring that through Isaac his descendant shall be named. In faith, despite the stress, Abraham gave Hagar and Ishmael food and water and sent them on their way. When the comfort and care of man had fallen short Hagar left Ishmael in the bushes weeping, not desiring to see her child die. How gracious was God to even hear the lad's cry in those bushes and commanded Hagar to lift him up. He opened her eyes to water and gave them life keeping His promise with Abraham. I don't know if Abraham later on finds out that his son and maid was still alive but despite not being able to find out he trusts in the Lord's promise. Abraham trusts in the Lord. He trusts that the Lord knows best, and the Lord will do what is good and just in His eyes. That's enough for Abraham, and that faith is just.. immense. And it is God who gave Abraham such a faith.. how gracious He is.. Even the mere moments of our heartbreaks and pains are for the glory of God and for our good.