You will not grow in the Christian life by doing nothing.
Paul writes to Timothy, “. . . train yourself for godliness” (1 Tim. 4:7). He then says, “Fight the good fight of faith” (1 Tim. 6:12). Paul is saying that you will not drift towards godliness, and faith is a fight. You can’t win the fight if you haven’t been training.
Mark Driscoll puts it this way, “Salvation costs you nothing; discipleship costs you everything. Salvation occurs in a moment; discipleship take a lifetime. Salvation is something God does for you; discipleship is something you do with God.”
God sent his son Jesus to live the life we could not live and die the death we deserved to die. Jesus, fully God and fully man, lived the perfect life and died on the cross, in our place, for our sins and ultimately rose from the dead. We are sinners and deserve God’s wrath and are separated from God. By turning from sin and believing & trusting in Jesus, our sins can be forgiven and we can have true life in him. There’s nothing we can do to earn our salvation. All you need is need. This is free. It costs you nothing. Jesus did the work for you.
For the rest of our lives after our conversion we are to seek God with all that we are. This is a grace-driven effort. We become like what we worship. By worshiping Jesus through Bible reading, prayer, serving a church, fellowship, corporate worship, etc., we become like him. These are spiritual disciplines and we must joyfully train ourselves in them in order to become godly. Godliness doesn’t happen on accident. This is not free. This will cost you your life. You do the work with God.
God is not going to make you read your Bible, pray, serve, etc. That is something that we must train ourselves to do. Just like A.W. Tozer once said, “You are as close to God as you choose to be.”
Train yourself. If you do, by God’s grace, you will be able to say with Paul at the end of your life, “I have fought the good fight, I have finished the race, I have kept the faith” (2 Tim. 4:7).