1. Weather signs (1-3)
The Pharisees who came to Jesus seeking a sign had no spiritual insight.They had seen many signs of his Messiahship, but they did not believe. They could look at the sky and make predictions about the weather. But they rejected the obvious spiritual signs and refused to believe in Jesus. They were selfish and did not want to make a commitment.
2. The sign of Jonah (4)
Jesus described his times as 'wicked and adulterous.' Wickedness is godlessness. Adultery is unfaithfulness. Adulterous people live by feelings, not by truth. Spiritual adultery is unfaithfulness to God. Sign-seeking, with no intention of making a commitment, reveals an unfaithful heart. The 'sign of Jonah' looks forward to Jesus' death and resurrection and calls people to repent (Jonah 3; Mt 12:39-41).
Application: Lord, give me a faithful and repentant heart and spiritual insight. Help me to live by gospel faith.
One Word: The sign of Jonah