Sirach 37:19

19 There is one that is wise and teacheth many, and yet is unprofitable to himself.

Sirach 37:19 In-Context

17 The countenance is a sign of changing of the heart.

18 Four manner of things appear: good and evil, life and death: but the tongue ruleth over them continually.

19 There is one that is wise and teacheth many, and yet is unprofitable to himself.

20 There is one that sheweth wisdom in words, and is hated: he shall be destitute of all food.

21 For grace is not given, him from the Lord, because he is deprived of all wisdom.