Mark 1:15 Commentary | The Kingdom of God Has Come; Repent & Believe!
Jesus announces the inauguration of the prophesied, inbreaking kingdom of God — which has come at God’s appointed time. The kingdom has come because the King has come. The kingdom is here “already” but “not yet” fully consummated — not until the Second Coming. In the meantime, Jesus commands people to repent and believe the Good News of the kingdom. We must turn from our sin and turn to Christ the King in loving, loyal obedience.