November 1
Abraham believed that his wife Sara would be healed and give birth to a son in their old age:
And not being weak in faith, he did not consider his own body, already dead (since he was about a hundred years old), and the deadness of Sarah’s womb. He did not waver at the promise of God through unbelief, but was strengthened in faith, giving glory to God, and being fully convinced that what He had promised He was also able to perform.
Romans 4:19–21