'Sound' in the Bible

and immoral men and homosexuals and kidnappers and liars and perjurers, and whatever else is contrary to sound teaching,

In pointing out these things to the brethren, you will be a good servant of Christ Jesus, constantly nourished on the words of the faith and of the sound doctrine which you have been following.

If anyone advocates a different doctrine and does not agree with sound words, those of our Lord Jesus Christ, and with the doctrine conforming to godliness,