The concept of inner change is not only the ultimate goal of counselling; it is also a central concept of the gospel. Biblical counselling entails a Scriptural understanding of the nature of change and aims at helping the counsellee change his/her inner life under the guidance of the Holy Spirit. Change is the essence of the process of sanctification, entailing “putting off” (laying off) sinful ways of life, renewing the mind, and ”putting on” (“clothing” oneself) with godly ways of life (Eph. 4:22 ff.; Col. 3:8 ff.; Rom. 12:1-2). Although believers have a new identity in Christ, they still suffer from the effect of sin and have to grow in sanctification. Often the believer has not been instructed about changing previous irrational and unbi...