In Brief CCC 592
© Libreria Editrice Vaticana Source: vatican.va
Jesus did not abolish the Law of Sinai, but rather fulfilled it (cf Mt 5:17-19) with such perfection (cf Jn 8:46) that he revealed its ultimate meaning (cf Mt 5:33) and redeemed the transgressions against it (cf Heb 9:15).
Read the full chapter 2. I Believe in Jesus Christ, the Only Son of God ¶422–682