Proverbs 27:1-3

Amplified Bible

27 Do not boast about tomorrow,
For you do not know what a day may bring.^(A)
2 
Let another praise you, and not your own mouth;
A stranger, and not your own lips.
³ 
Stone is heavy and the sand weighty,
But a fool’s [unreasonable] wrath is heavier and more burdensome than both of them.