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Blessings brothers! In my new teaching, I want to share the great need to understand that God will always do what he wants and not as we consider things to be.
In Genesis 18: 1-15, God set the guidelines for promising Abraham a son through his wife Sarah. However, the word says that this caused laughter in Sara, because both Abraham and she were elderly and, in addition to Sara, the custom of women had ceased. Remember that God does what he wants.
In Sara's life after hearing that promise from God, negative thoughts began to rumble in her mind that went against the promise. Sara began to do things in her own way and not in God's way. Sara went into despair, probably due to her advanced age and incredible sexual pleasure with her husband. In her rush to give her husband Abraham a child, she ended up giving her servant Hagar to sleep with her husband Abraham and have the son that God had apparently promised her.
Sara kept doing things in her own way and not in God's way. When his servant Hagar had the son with Abraham, that is, Ishmael; Things became an ordeal for Sara, who in her desperation to leave Ishmael and Hagar asked Abraham to throw them out of the camp.
When we don't align with what God wants from us, we end up doing things completely wrong and wrong.
When the time came, Sara delighted with her husband Abraham and the result was the son of the promise, Isaac.
God does what he wants, for God there are no limitations, there is no influence on the age or physical wear of the human body. God is powerful to fulfill his plans. God does what he wants.