CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 2567–2571

2567 God calls man first. Man may forget his Creator or hide far from his face; he may run after idols or accuse the deity of having abandoned him; yet the living and true God tirelessly calls each person to that mysterious encounter known as prayer. In prayer, the faithful God's initiative of love always comes first; our own first step is always a response. As God gradually reveals himself and reveals man to himself, prayer appears as a reciprocal call, a covenant drama. Through words and actions, this drama engages the heart. It unfolds throughout the whole history of salvation.
2568 In the Old Testament, the revelation of prayer comes between the fall and the restoration of man, that is, between God's sorrowful call to his first children: "Where are you? . . . What is this that you have done?" and the response of God's only Son on coming into the world: "Lo, I have come to do your will, O God." Prayer is bound up with human history, for it is the relationship with God in historical events.
2569 Prayer is lived in the first place beginning with the realities of creation. The first nine chapters of Genesis describe this relationship with God as an offering of the first-born of Abel's flock, as the invocation of the divine name at the time of Enosh, and as "walking with God. Noah's offering is pleasing to God, who blesses him and through him all creation, because his heart was upright and undivided; Noah, like Enoch before him, "walks with God." This kind of prayer is lived by many righteous people in all religions.

In his indefectible covenant with every living creature, God has always called people to prayer. But it is above all beginning with our father Abraham that prayer is revealed in the Old Testament.

2570 When God calls him, Abraham goes forth "as the Lord had told him"; Abraham's heart is entirely submissive to the Word and so he obeys. Such attentiveness of the heart, whose decisions are made according to God's will, is essential to prayer, while the words used count only in relation to it. Abraham's prayer is expressed first by deeds: a man of silence, he constructs an altar to the Lord at each stage of his journey. Only later does Abraham's first prayer in words appear: a veiled complaint reminding God of his promises which seem unfulfilled. Thus one aspect of the drama of prayer appears from the beginning: the test of faith in the fidelity of God.
2571 Because Abraham believed in God and walked in his presence and in covenant with him, the patriarch is ready to welcome a mysterious Guest into his tent. Abraham's remarkable hospitality at Mamre foreshadows the annunciation of the true Son of the promise. After that, once God had confided his plan, Abraham's heart is attuned to his Lord's compassion for men and he dares to intercede for them with bold confidence.