'Four' in the Bible

And four men have been leprous, at the opening of the gate, and they say one unto another, 'What -- we are sitting here till we have died;

And Amaziah king of Judah, son of Jehoash son of Ahaziah, caught hath Jehoash king of Israel in Beth-Shemesh, and they come in to Jerusalem, and he bursteth through the wall of Jerusalem, at the gate of Ephraim unto the gate of the corner, four hundred cubits,