29 Yet it is worthwhile dwelling on this point a little: when Christ preached to the people, whether on the Mount by the lakeside, or in the synagogue at Nazareth, or in His own city of Capharnaum, He took His points and His arguments from the Bible. From the same source came His weapons when disputing with the Scribes and Pharisees. Whether teaching or disputing He quotes from all parts of Scripture and takes His example from it; He quotes it as an argument which must be accepted. He refers without any discrimination of sources to the stories of Jonas and the Ninivites, of the Queen of Sheba and Solomon, of Elias and Eliseus, of David and of Noe, of Lot and the Sodomites, and even of Lot's wife. (cf. Mt . 12:3, 39-42; Lk . 17:26-29, 32). How solemn His witness to the truth of the sacred books: "One jot, or one tittle shall not pass of the Law till all be fulfilled" ( Mt . 5:18); and again: "The Scripture cannot be broken" ( Jn . 10:35); and consequently: "He therefore that shall break one of these least commandments, and shall so teach men shall be called the least in the kingdom of heaven" ( Mt . 5:19). Before His Ascension, too, when He would steep His Apostles in the same doctrine: "He opened their understanding that they might understand the Scriptures. And He said to them: thus it is written, and thus it behoved Christ to suffer, and to rise again from the dead the third day" ( Lk . 24:45).
Source: Spiritus Paraclitus (Vatican.va)