CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 52–56

52 God, who "dwells in unapproachable light", wants to communicate his own divine life to the men he freely created, in order to adopt them as his sons in his only-begotten Son. By revealing himself God wishes to make them capable of responding to him, and of knowing him and of loving him far beyond their own natural capacity.
53 The divine plan of Revelation is realized simultaneously "by deeds and words which are intrinsically bound up with each other" and shed light on each another. It involves a specific divine pedagogy: God communicates himself to man gradually. He prepares him to welcome by stages the supernatural Revelation that is to culminate in the person and mission of the incarnate Word, Jesus Christ.

St. Irenaeus of Lyons repeatedly speaks of this divine pedagogy using the image of God and man becoming accustomed to one another: The Word of God dwelt in man and became the Son of man in order to accustom man to perceive God and to accustom God to dwell in man, according to the Father's pleasure.

54 "God, who creates and conserves all things by his Word, provides men with constant evidence of himself in created realities. And furthermore, wishing to open up the way to heavenly salvation - he manifested himself to our first parents from the very beginning." He invited them to intimate communion with himself and clothed them with resplendent grace and justice.
55 This revelation was not broken off by our first parents' sin. "After the fall, [God] buoyed them up with the hope of salvation, by promising redemption; and he has never ceased to show his solicitude for the human race. For he wishes to give eternal life to all those who seek salvation by patience in well-doing."

Even when he disobeyed you and lost your friendship you did not abandon him to the power of death. . . Again and again you offered a covenant to man.

56 After the unity of the human race was shattered by sin God at once sought to save humanity part by part. The covenant with Noah after the flood gives expression to the principle of the divine economy toward the "nations", in other words, towards men grouped "in their lands, each with [its] own language, by their families, in their nations".