'Six' in the Bible

And the four living creatures, each one of them having respectively six wings; round and within they are full of eyes; and they cease not day and night saying, Holy, holy, holy, Lord God Almighty, who was, and who is, and who is to come.

Here is wisdom. He that has understanding let him count the number of the beast: for it is a man's number; and its number is six hundred and sixty-six.

and the wine-press was trodden without the city, and blood went out of the wine-press to the bits of the horses for a thousand six hundred stadia.