Proverbs 30:21

19 The way of an eagle in the air; the way of a serpent upon a rock; the way of a ship in the midst of the sea; and the way of a man with a maid.

20 Such is the way of an adulterous woman; she eateth, and wipeth her mouth, and saith, I have done no wickedness.

For three things the earth is disquieted, and for four which it cannot bear:

22 For a servant when he reigneth; and a fool when he is filled with meat;

23 For an odious woman when she is married; and an handmaid that is heir to her mistress.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Under three things the earth trembles, under four it cannot bear up:
KJV
For three things the earth is disquieted, and for four which it cannot bear:
WEB
“For three things the earth trembles, and under four, it can’t bear up:
ASV
For three things the earth doth tremble, And for four, [which] it cannot bear:
DARBY
Under three [things] the earth is disquieted, and under four it cannot bear up:
BLB
For three things the earth has trembled, and for four it is not able to bear up:
ÅB
Under tre skjelver jorden, og under fire kan den ikke holde ut:
OTB
Under tre ting skjelver jorden, under fire kan den ikke holde ut:
B1930
Under tre skjelver jorden, og under fire kan den ikke holde ut:

Study notes (Tyndale)

Original text and word study