Just as a wedding should not be the goal of a relationship, but the beginning of a marriage, baptism is not the end, but the beginning of a relationship with Jesus. To remain an effective Christian, Jesus (Bread of Life) must remain fresh. How do you maintain your freshness? By attending worship with other passionate believers. By attending classes where you can learn more about God and his word. By having friendships with other sold-out Christians that can support you, challenge you and hold you accountable. By spending time alone in God's word which facilitates a conversation with God. All of these things keep your relationship fresh, it keeps you effective. How can we share the good news of God and his grace and mercy if we are not keenly aware of it ourselves?
Being an effective Christian is a pleasing aroma to God (verse 15). I want to be a pleasing aroma to God. I don't want to be stale, stinky and ineffective. My Jesus had me on his mind when he sacrificed himself as on offering to cover my sins. I want to God to enjoy the scent of me! I want him to breathe in deep just like I do when I pass the bread factory on the interstate!