That is so good. I agree with your point on the fact that only some were actually teaching the doctrine (the gospel of Jesus Christ). Paul pointed out to those strong believers the characteristics of those who were not strong in the faith.
Amen my sisters. The truth has to be taught and maintained. Not a version of the truth. It is only when the truth is taught that hearts can be transformed.
1 Timothy is a great book in the bible. I learned that there can be people in the church that are not sharing the Gospel of Jesus Christ. It helped me learned to be aware of such teachings.