Job 5:2
For wrath killeth the foolish man, and envy slayeth the silly one.
Hosea 7:11
Ephraim also is like a silly dove without heart: they call to Egypt, they go to Assyria.
2 Timothy 3:6
For of this sort are they which creep into houses, and lead captive silly women laden with sins, led away with divers lusts,