The Beginning of the Gospel — Baptism, Temptation, and the First Miracles

Mark begins with one of the most dense phrases in the NT. 'Beginning' (arche) echoes Genesis 1:1 and John 1:1 — a new beginning in the history of creation. 'Gospel' (euangelion) was a word from the Roman world: an announcement of military victory or the birth of an emperor. Mark subverts the usage: the true Gospel is not that of Caesar, but of Jesus Christ. 'Son of God' — some ancient manuscripts omit this phrase, but it is theologically central for Mark: the entire Gospel is the progressive revelation of who Jesus is, culminating in the centurion’s confession at the cross (15:39).

This is the summary of Jesus’ ministry in Mark — four statements compressed into one sentence. 'The time is fulfilled' (pepleromai ho kairos): the decisive moment in history has arrived, the time of waiting is over. 'The kingdom of God is at hand' (engiken): it has come, it is here, it is breaking into history. 'Repent' (metanoeite): a radical change of direction. 'Believe in the gospel': faith in the announcement of the good news. Repentance and faith are two sides of the same coin — the human response to the coming Kingdom.

The word 'authority' (exousia) appears here for the first time and will be a central theme in Mark. Jesus does not teach like the scribes — who cited rabbinic authorities ('Rabbi So-and-so says...'); Jesus teaches with his own authority. And this authority extends beyond words: the unclean spirits recognize and obey him. The spiritual world knows who Jesus is before humans discover it. The question 'What is this?' is the question Mark wants the reader to ask — and to answer progressively throughout the Gospel.