Titus 2:1
But you speak the things which become sound doctrine:
1 Timothy 1:10
For fornicators, for homosexuals, for slave traders, for liars, for perjurers, and if there be any other thing that is contrary to sound doctrine;
Titus 1:9
Holding fast the faithful word as he has been taught, that he may be able by sound doctrine both to exhort and to refute the opposition.
1 Timothy 6:3
If any man teach otherwise, and consent not to wholesome words, even the words of our Lord Jesus Christ, and to the doctrine which is according to godliness;
2 Timothy 1:13
Hold fast the pattern of sound words, which you have heard of me, in faith and love which is in Christ Jesus.
Titus 2:11-14
For the grace of God that brings salvation has appeared to all men,
Titus 3:8
This is a faithful saying, and these things I desire that you affirm constantly, that they who have believed in God might be careful to maintain good works. These things are good and profitable unto men.