Sirach 6:20-23
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20 She is very unpleasant to the unlearned: he that is without understanding will not remain with her.
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21 She will lie upon him as a mighty stone of trial; and he will cast her from him ere it be long.
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22 For wisdom is according to her name, and she is not manifest unto many.
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23 Give ear, my son, receive my advice, and refuse not my counsel,