Great Sermon! This was a very good message. God's Word is all we need. And I won't iterate or repeat what you've already said noted in this message.
However, I would add that you should include in future messages the need for each and every member of your charge to study, live, and be guided by 2 Timothy 2:15 principles. . . . and study for themselves.
Sir, you have no possible idea about what His Holy Spirit might have to reveal from His Word to another member of the Body (apart from what He has revealed to you).
"Jesus, when He had cried again with a loud voice, yielded up the ghost. And, BEHOLD, THE VEIL OF THE TEMPLE WAS RENT IN TWAIN FROM THE TOP TO THE BOTTOM; . . ." (Matthew 27:50-51)