Deuteronomy 4:2

4:2 Do not add a thing to what I command you nor subtract from it, so that you may keep the commandments of the Lord your God that I am delivering to you.

Jeremiah 26:2

26:2 The Lord said, “Go stand in the courtyard of the Lord’s temple. Speak out to all the people who are coming from the towns of Judah to worship in the Lord’s temple. Tell them everything I command you to tell them. Do not leave out a single word!

Acts 20:27

20:27 For I did not hold back from announcing to you the whole purpose of God.