Titus 1:6; Titus 1:9; Titus 3:8

6 If any be blameless, the husband of one wife, having faithful children not accused of riot or unruly.
9 Holding fast the faithful word as he hath been taught, that he may be able by sound doctrine both to exhort and to convince the gainsayers .
8 This is a faithful saying, and these things I will that thou affirm constantly , that they which have believed in God might be careful to maintain good works. These things are good and profitable unto men.