'Three' in the Bible

"The leach has two daughters: 'Give, give.' "There are three things that are never satisfied; four that don't say, 'Enough:'

"There are three things which are too amazing for me, four which I don't understand:

"For three things the earth tremble, and under four, it can't bear up:

"There are three things which are stately in their march, four which are stately in going: