In Leviticus 21:1, God instructs Moses to give only the priesthood a specific set of commands:
And the Lord said to Moses, “Speak to the priests, the sons of Aaron, and say to them...
However, at the end of the chapter in verse 24, we find out that Moses didn't fully obey this:
And Moses told it to Aaron and his sons, and to all the children of Israel.
Why did Moses add unto God's words by telling the entire nation of Israel priest-only commands? Was this disobedience?