Doctrine → and piety

Doctrine → catechesis

Doctrine → duty to spread good doctrine

Doctrine → formation

Doctrine → formation of conscience

Doctrine → knowledge

Doctrine → Magisterium of the Church

Doctrine → need for good doctrine

Doctrine → on faith

Doctrine → prudence and fortitude

Doctrine → to be transmitted

Doctrine → ways of teaching good doctrine

Doctrine → with the gift of tongues