Matthew 4:18-22
18 And Jesus, walking by the sea of Galilee, saw two brethren, Simon called Peter, and Andrew his brother, casting a net into the sea: for they were fishers.
19 And he saith unto them, Follow me, and I will make you fishers of men.
20 And they straightway left their nets, and followed him.
21 And going on from thence, he saw other two brethren, James the son of Zebedee, and John his brother, in a ship with Zebedee their father, mending their nets; and he called them.
22 And they immediately left the ship and their father, and followed him.
-There is a recurring theme in scripture of people leaving things behind as they make the decision to follow Jesus. This is important and designed to show us that we too will have to make similar decisions in our own life. The way of Christ is a narrow way and there are a great many things that simply will not fit as we travel the path. The Bible goes on at length teaching that we cannot serve God and another master (Matthew 6:24), we cannot please God and please people (Galatians 1:10), and we cannot have friendship with God and be a friend to the world (James 4:4). There are plenty of individual lessons that speak to each of our lives but the main lesson is that Jesus Christ has the power to turn us into a whole new creation (2 Corinthians 5:17); and that new creature has no business carrying around the things of the old.