'Diminish' in the Bible

O Lord, correct me [along with Your people], but with mercy and in just measure—Not in Your anger, or You will crush me and bring me to nothing.

Thus saith the LORD; Stand in the court of the LORD'S house, and speak unto all the cities of Judah, which come to worship in the LORD'S house, all the words that I command thee to speak unto them; diminish not a word: