Belief in God is rational.
Everything has a cause. So unless there is a first cause, then you would have an infinite regress. And then nothing could exist. Therefore there must be a first cause. Therefore God, the first cause, exists. QED.
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13.8.19
Tosphot in Sanhedrin page 10
Rosh Hashanah = the actual new moon. This of course is going according the Tosphot in Sanhedrin page 10 that you go according to the time of the "molad"--the conjunction.
