Absolutely. Each of us offers only our personal opinion. I do not speak for the Lord or the Church.
One can point out what God had to say by directing others to the Scripture He inspired. That does not constitute *speaking for God*.
Speaking for God would be telling you that Dancing is a sin. Or that you shouldn't go to movies.
Directing someone to the passages that say, *Do not murder* is not speaking for God. God has already spoken on it and put it in writing. The person pointing it out is not speaking FOR God.