CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 2542–2546

2542 The Law entrusted to Israel never sufficed to justify those subject to it; it even became the instrument of "lust." The gap between wanting and doing points to the conflict between God's Law which is the "law of my mind," and another law "making me captive to the law of sin which dwells in my members."
2543 "But now the righteousness of God has been manifested apart from law, although the law and the prophets bear witness to it, the righteousness of God through faith in Jesus Christ for all who believe." Henceforth, Christ's faithful "have crucified the flesh with its passions and desires"; they are led by the Spirit and follow the desires of the Spirit.
2544 Jesus enjoins his disciples to prefer him to everything and everyone, and bids them "renounce all that [they have]" for his sake and that of the Gospel. Shortly before his passion he gave them the example of the poor widow of Jerusalem who, out of her poverty, gave all that she had to live on. The precept of detachment from riches is obligatory for entrance into the Kingdom of heaven.
2545 All Christ's faithful are to "direct their affections rightly, lest they be hindered in their pursuit of perfect charity by the use of worldly things and by an adherence to riches which is contrary to the spirit of evangelical poverty."
2546 "Blessed are the poor in spirit." The Beatitudes reveal an order of happiness and grace, of beauty and peace. Jesus celebrates the joy of the poor, to whom the Kingdom already belongs:

The Word speaks of voluntary humility as "poverty in spirit"; the Apostle gives an example of God's poverty when he says: "For your sakes he became poor."