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!