1 Timothy 6:3
If anyone teaches another doctrine and disagrees with the sound words of our Lord Jesus Christ and with godly teaching,
What it says
If anyone teaches another doctrine and does not agree with the sound words of the Lord Jesus Christ and with godly teaching,
What it is doing
It opens the section by naming the departure from sound teaching.
In context
3If anyone teaches another doctrine and disagrees with the sound words of our Lord Jesus Christ and with godly teaching, 4he is conceited and understands nothing. Instead, he has an unhealthy interest in controversies and disputes about words, out of which come envy, strife, abusive talk, evil suspicions, 5and constant friction between men of depraved mind who are devoid of the truth. These men regard godliness as a means of gain.