As a start they need to commit themselves to being the best disciples of Jesus Christ they can be. Then they should seek out some other Christians to disciple them. Although some believers can disciple themselves, most will need to get involved in the discipleship ministry of a local church or find some mature Christians who will disciple them. God uses human disciples as well as His Spirit to encourage and mold lackadaisical believers into Christ's image. Godly desires and intentions are where we have to begin, but to get to the end successfully, we need others to disciple us.
Discipleship is the key to sustained and consistent growth.
We must either go forward and become serious about living the Christian life or we will stray further and further from God. God wants to revitalize our lives, but we have to do whatever it takes to become His disciple. Becoming a commendable disciple of Jesus Christ does not happen overnight. In fact, it is a lifelong process of learning and growing.