If this isn’t a sign, what is?

Look at the rainbow, and praise him who made it; it is exceedingly beautiful in its brightness.
It encircles the sky with its glorious arc; the hands of the Most High have stretched it out.
– Ecclesiasticus (ch. XLIII, v. 11-12)

Proof that God created rainbows so we could find beer more easily.
(click on the pic for a larger image)