In Mark 1:14–15, Jesus Christ, the heavenly herald, proclaims the Gospel of God with sovereign authority and holy urgency. As John the Baptist's preparatory ministry comes to a close, Jesus steps forward to fulfill His purpose, summoning sinners to eternal life. Our Savior-King issues a divine command to repent, announces the arrival of God's kingdom, and offers true hope to those perishing in their sin. All praise be to Him!