A man with leprosy comes to Jesus to be healed. Through this interaction we again see Jesus' power over disease, we can draw out some applications to being a good disciple, we can also learn from Jesus' flexibility and determination in ministry.
Here we see Jesus get up early to go pray alone. Why did Jesus do this? What example does he set for us, His followers? The power of prayer and the secret place of God has never been more profoundly demonstrated than in the life of Jesus.
The gospel establishes Jesus' authority in teaching and his authority over the kingdom of darkness. In His holiness as the Son of God, he had come to cancel our debt and uproot the hold of the enemy.
Jesus begins to establish The Kingdom of Heaven. The Gospel of Mark begins Jesus ministry with Him laying the foundation of the good news of the kingdom. This was the dawn of the new age of God fulfilling His promises through the promised Messiah.
Satan attempts to frustrate and derail the plan of God. Jesus the "second Adam" would not succumb to the devil's tempting. Jesus endured temptation to become the spotless sacrificial lamb to be bring righteousness to the believer's heart fulfilling the new covenant promise.
John the Baptist was the first preacher of the gospel (the good news). Out of the wilderness John preached repentance, preparing the way for Jesus. Study the themes present as well as what we can learn from John's ministry.
What was needed to prepare for the coming Messiah - Jesus - the priority of the gospel? Out of the wilderness, out of barrenness, God was bringing something new. Often we fail to prepare for what God wants to bring into the church and into our lives. Let our response be: make a straight path for HIM!