'Three' in the Bible

And there were set there six waterpots of stone, after the manner of the purifying of the Jews, containing two or three firkins apiece.

Jesus answered and said unto them, Destroy this temple, and in three days I will raise it up.

Then said the Jews, Forty and six years was this temple in building, and wilt thou rear it up in three days?

Why was not this ointment sold for three hundred pence, and given to the poor?

Simon Peter went up, and drew the net to land full of great fishes, an hundred and fifty and three: and for all there were so many, yet was not the net broken.