Proverbs 30:15; Proverbs 30:18; Proverbs 30:21; Proverbs 30:29

15 The leech has two daughters, "Give," "Give." There are three things that will not be satisfied, Four that will not say, "Enough ":
18 There are three things which are too wonderful for me, Four which I do not understand:
21 Under three things the earth quakes, And under four, it cannot bear up:
29 There are three things which are stately in their march, Even four which are stately when they walk: