Article 1 IN THE OLD TESTAMENT

From The Catechism of the Catholic Church

2570
When God calls him, Abraham goes forth “as the Lord had told
him”;⁸ 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.⁹ Thus one aspect of the drama
of prayer appears from the beginning: the test of faith in the fidelity of God.

PART FOUR: CHRISTIAN PRAYER