Mathematical Puzzle: IF 6+3=...

It is pouring rain in the flood plain of the Mississippi Valley, and the rising river begins to threaten all manner of private homes, including that of the local Rabbi.
With water coming into the ground floor, a rowboat with police comes by, and the officer shouts, "Rabbi, let us evacuate you! The water level is getting dangerous."
The Rabbi replies, "No thank you, I am a righteous man, who trusts in the Almighty, and I am confident he will deliver me." Three hours go by, and the rains intensify, at which point the Rabbi has been forced up to the second floor of his house.A second police rowboat comes by, and the officer shouts, "Rabbi, let us evacuate you! The water level is getting dangerous."
The Rabbi replies, "No thank you, I am a righteous man, who trusts in the Almighty, and I am confident he will deliver me."
The rain does not stop, and the Rabbi is forced up onto the roof of his house. A helicopter flies over, and the officer shouts down, "Rabbi, grab the rope and we'll pull you up! You're in terrible danger!"
The Rabbi replies, "No thank you, I am a righteous man, who trusts in the Almighty, and I am confident he will deliver me."
The deluge continues, and the Rabbi is swept off the roof, carried away in the current and drowns. He goes up to heaven, and at the Pearly Gates he is admitted, and comes before the Divine Presence.
The Rabbi asks, "Dear Lord, I don't understand. I've been a righteous observant person my whole life, and depended on you to save me in my hour of need. Where were you?"
And the Lord answered, "I sent two boats and a helicopter, what more do you want?"