The elements that are typical of Jesus’ public ministry on earth are listed in Matthew 4:23, and are consistent, since they are repeated in Matthew 9:35: (1) teaching or preaching (Matthew 5:1–7:29) and (2) healing. Jesus teaches the meaning of the Word of his Father and confirms it by the signs, especially in miraculous healings (Matthew 9:6; Mark 16:17; Hebrews 2:4).
In Matthew 4:23 the evangelist summarizes the two elements of Jesus’ public ministry which will be the focus of the chapters that follow, wherein the element of (1) teaching or preaching (Matthew 5:1–7:29) is closely connected to the element of (2) healing (Matthew 8:1–9:38).1 Jesus first proceeds to explain the Word of his Father, thereby fostering the people with knowledge. It is significant in this regard that Jesus’ preaching is so often referred to as a teaching.
Education in the truth is necessary, and this education must be given publicly, so that all can hear it. The truth of the message is confirmed by the signs, especially the miraculous healings of Jesus (Matthew 9:6; Mark 16:17; Hebrews 2:4).2 Later, in Matthew 9:35, the evangelist almost verbally repeats the same description of Jesus’ ministry recorded in Matthew 4:23. By then Jesus is still continuing this great work of love, even though by then a considerable amount of time has already passed (just prior to sending out the twelve apostles). This shows that what he began to do at the start of his ministry was not some casual incident. It is characteristic of his work aimed at inviting Israel to the kingdom of God in which creation will be redeemed and restored.3
23 Jésus parcourait toute la Galilée, enseignant dans les synagogues, prêchant la bonne nouvelle du royaume, et guérissant toute maladie et toute infirmité parmi le peuple.