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

15 The leech hath two daughters: Give, give. There are three [things] never satisfied; four which say not, It is enough:
18 There are three [things] too wonderful for me, and four that I know not:
21 Under three [things] the earth is disquieted, and under four it cannot bear up:
29 There are three [things] which have a stately step, and four are comely in going: