Do not be quickly moved to anger. For anger resides in the sinews of the foolish
Other versions
King James Version
Say not thou, What is the cause that the former days were better than these? for thou dost not enquire wisely concerning this. English Standard Version
Say not, "Why were the former days better than these?" For it is not from wisdom that you ask this.New International Version
Do not say, "Why were the old days better than these?" For it is not wise to ask such questions.