In all things shewing thyself a pattern of good works: in doctrine shewing uncorruptness, gravity, sincerity, In - with respect to all things.
Thyself a pattern - though but a young man. All teaching is useless unless one's example confirm his word. In doctrine - in thy ministerial teaching (showing) uncorruptness; i:e., untainted sincerity х afthorian (G862b), 'Aleph (') A Delta, for adiafthorian (C)] (cf. 2 Corinthians 11:3). As "gravity," etc., refers to Titus' manner (dignified seriousness in delivery), so "uncorruptness" to his doctrine.
Sincerity, [aftharsian] - Delta. But omitted in 'Aleph (') A C G, Vulgate.