The Molten Sea or Brazen Sea (ים מוצק "cast metal sea") was a large basin in the Temple in Jerusalem made by Solomon for ablution of the priests. It is described in 1 Kings 7:23-26 and 2 Chronicles 4:2-5. It stood in the south-eastern corner of the inner court. According to the Bible it was five cubits high, tencubits in diameter from brim to brim, and thirty cubits in circumference. 

The Bible is full of codes! This number 3 was only for dummies. Really clever people would recognize that the word for measuring line is usually קו (qw), while in 1 Kings 7:23 it's קוה (qwh). Now establish the numerical value of each word: q+w = 100+6 = 106; q+w+h = 100+6+5 = 111. Now divide 111 by 106 and multiply the outcome with the 3 for dummies. What do you get: 3,1415094339622641509433962264151!