Sirach 37:24LXX

22A skillful man hath taught many, and is sweet to his own soul.

23He that speaketh sophistically, is hateful: he shall be destitute of every thing.

24Grace is not given him from the Lord: for he is deprived of all wisdom.

25There is a wise man that is wise to his own soul: and the fruit of his understanding is commendable.

26A wise man instructeth his own people, and the fruits of his understanding are faithful.