“As the proverb of the ancients says,
‘Out of the wicked comes forth wickedness’"
There was the ancient proverb that says, “Out of the wicked comes forth wickedness” (1 Sam. 24:13).
Although David dealt well with King Saul, King Saul dealt wickedly with David (v. 17).
Although David dealt well with Nabal, who was “a worthless man” (25:17) and “Fool” (v. 25),
Nabal paid him back evil for good (v. 21).