Genesis 17:24
Abraham was 99 years old when he was circumcised,
Romans 4:11
Afterward he received the mark of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. Therefore, he is the ancestor of all who believe while uncircumcised, in order that righteousness may be credited to them.
Genesis 12:4
So Abram left there, as the LORD had directed him, and Lot accompanied him. Abram was 75 years old when he left Haran.
Genesis 17:1
When Abram was 99 years old, the LORD appeared to Abram and announced, "I am God Almighty. Live in constant awareness that I'm always with you, and be blameless.
Genesis 17:17
Abraham fell to the ground, laughed, and told himself, "Can a child be born to a 100-year-old man? Can a 90-year-old Sarah give birth?"
Romans 4:19-20
His faith did not weaken when he thought about his own body (which was already as good as dead now that he was about a hundred years old) or about Sarah's inability to have children,
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