While these verses record the itinerant ministry of Jesus, Mark's emphasis was clearly on Jesus' spiritual preparation for that ministry. It highlighted His dependence on His Father.
1:35 Mark implied that these events happened the next day. Many people would have slept late after such a busy day. However, Jesus rose early, even before dawn, and went to a remote (Gr. eremon, v. 4) place to pray (Gr. proseucho, the general word for prayer). This sacrificial act paints Jesus as consciously dependent on His Father for strength and direction for what lay ahead of Him. Prayerlessness typically manifests self-sufficiency, but prayerfulness reveals humility.
"Mark selectively portrayed Jesus at prayer on three crucial occasions, each in a setting of darkness and aloneness: near the beginning of his account (v. 35), near the middle (6:46), and near the end (14:32-42). All three were occasions when He was faced with the possibility of achieving His messianic mission in a more attractive, less costly way. But in each case He gained strength through prayer."55
In this case the crest of popular support that Jesus had ridden the day before threatened to carry Him into political leadership that might have washed out the Cross.
1:36-37 Simon and his companions--who they were is unimportant--did not understand Jesus' need for prayer. They seem to have had the common attitude that when things are favorable we do not need God's help. Their words implied annoyance. Apparently they felt Jesus was not taking advantage of His popularity to promote His mission. They did not realize that God directed Jesus' mission, not the responses of people. This is the first instance of Peter's impetuous leadership that Mark recorded.
1:38-39 Peter viewed the healing ministry of Jesus as primary, as did many of his companions. Jesus viewed them as only a small part of His larger mission. He had "come out"from God to fulfill this mission. Peter encouraged Jesus to stay where He could not escape pressure to perform miracles (cf. John 7:3-5). Jesus chose to move on to other parts of Galilee where He could present the gospel (v. 14) and His claims (v. 15).
Verse 39 summarizes this preaching tour throughout Galilee. It may have lasted several weeks or even months (cf. Matt. 4:23-25). Jesus centered His ministry during this time in the synagogues because His mission was essentially religious rather than political or economic. His main activity was heralding (Gr. kerysso) the gospel, but He authenticated His preaching with miracles, the most dramatic of which were exorcisms.