Jesus takes the opportunity of this miracle to call His disciples into a Teacher - student relationship with Him. He figuratively catches Peter in His net before commanding him to "catch men" for the Kingdom of God. Immediately, Peter, Andrew, James, and John leave their boats and nets behind and follow Him. They now understand that Jesus is more than capable of supplying their every need.
We are to apply this lesson in our own lives. When Christ speaks, it is always about obedience to God's way of life. In this case, His teaching affected the disciples' livelihoods. Worship and work form major parts of our lives, too, and in both we must consistently maintain righteousness.
Had Peter failed to obey Christ's command, he would have failed to experience both the miracle and the resulting blessing. No one serves God without being compensated for his service. When we serve, sacrifice, testify, or stand for Him, He will suitably reward our efforts. When God asks us to invest our time, effort, talent, or anything else, we must not resent the opportunity. No one pays dividends on an investment as abundantly as God does - "good measure, pressed down, and running over will be put into your bosom" (Luke 6:38).