Sir 6:21
King James Version
“She will lie upon him as a mighty stone of trial; and he will cast her from him ere it be long.”
Context
18My son, gather instruction from thy youth up: so shalt thou find wisdom till thine old age.
19Come unto her as one that ploweth and soweth, and wait for her good fruits: for thou shalt not toil much in labouring about her, but thou shalt eat of her fruits right soon.
20She is very unpleasant to the unlearned: he that is without understanding will not remain with her.
21She will lie upon him as a mighty stone of trial; and he will cast her from him ere it be long.
22For wisdom is according to her name, and she is not manifest unto many.
23Give ear, my son, receive my advice, and refuse not my counsel,
24And put thy feet into her fetters, and thy neck into her chain.