# Development, Doctrinal ## Catechism of the Catholic Church Growth in the understanding of God's revelation, which continues though the contemplation and study of believers, theological research, and the preaching of the Magisterium ([[1.1.2.2.pm#^ccc-94|94]]). ## Vatican II - development of doctrine — "there is a growth in the understanding of the realities and the words which have been handed down" — [[dei-verbum#^dv-8|DV ¶8]]