Sirach 19:17

17 Admonish thy neighbour before thou threaten him; and not being angry, give place to the law of the most High.

Sirach 19:17 In-Context

15 Admonish a friend: for many times it is a slander, and believe not every tale.
16 There is one that slippeth in his speech, but not from his heart; and who is he that hath not offended with his tongue?
17 Admonish thy neighbour before thou threaten him; and not being angry, give place to the law of the most High.
18 The fear of the Lord is the first step to be accepted and wisdom obtaineth his love.
19 The knowledge of the commandments of the Lord is the doctrine of life: and they that do things that please him shall receive the fruit of the tree of immortality.

The Brenton translation of the Septuagint is in the public domain.