It must be remembered that, as Jesus preached only to the Jews, so the Gospels (except possibly John), were written with the purpose of convincing the Jews of the truth of Jesus' claims to be their Messiah. The more their authors could connect Him with the sayings and predictions of the Old Testament, the stronger their case. Hence, with nearly every incident of Jesus' life, they cite some appropriate text of the Old Testament, usually with the addition, "that it might be fulfilled" or "as it was spoken by the prophet." In their zeal, it is possible that, in some cases, an incident was found to fit a text, rather than a text to fit an incident.
[17] Apparently, after Jesus left Nazareth, He became domiciled at Capernaum (Mark II:1,15; Matt. IX:1).
[18] The four Gospels use the term "disciples" without much distinction, as meaning either the apostles or the immediate, personal adherents of Jesus for the time being.
[19] According to Mark this "feast" was in Jesus' house (Mark II:15; see Matt. IX:10).
[20] This first discourse of Jesus stands unequaled in religious writings for its clearness, simplicity and freedom from dogmatic theology. To appreciate this, it is only necessary to cite some passages from John's Gospel, which in comparison seem mystic, turgid and ambiguous (John I:1-14; III:11-23; IV:50-59). There is scarcely a sentence in the Sermon on the Mount susceptible of a double meaning, or which a man of ordinary education cannot understand without the aid of a learned exegesis. Yet how hard it is for the poor human followers of Jesus to rise to its grand simplicity. Take, for instance, the subject of fasting. It seems almost impossible for the Christian, of ancient or modern times, to escape from the idea that, in mortifying the flesh, he is doing something pleasing to God. John the Baptist both fasted and enjoined fasting on his disciples. But Jesus neither fasted Himself, nor enjoined fasting on His disciples (Matt. IX:14; Mark II:18; Luke V:33; Matt. III:4; Luke VII:33-34). With His sane view of life, free of all fanaticism, He here, as always, inculcated temperance, condemning the excess of asceticism, as much as the excess of overindulgence in eating and drinking. While He does not prohibit fasting, He, in very plain language checks the enthusiasm of His disciples to make the public practice of fasting a mark of holiness.
"Moreover, when ye fast, be not as the hypocrites of a sad countenance, for they disfigure their faces that they may appear to fast."
"But thou, when thou fastest, anoint thine head and wash thy face. That thou appear not unto men to fast, but unto thy Father which is in secret" (Matt. VI:16, 17, 18).
This seems so clear that he who runs may read, and how the Roman Catholic and Protestant Episcopal Churches make it square with their public celebration of the Lenten fast, for instance, is hard to understand. The "Fast Day" of New England would seem to come directly under Jesus' condemnation.
[21] The Sermon on the Mount is probably composed of a number of utterances at different times and places, which have been compiled and put together in one discourse by the author of this Gospel.
[22] The promulgation of the Lord's Prayer is one of the most significant events of Jesus' prophetic career. It illustrates both His conception of God, and, as a consequence, His dislike of all ceremonial worship.