"Because of this reality of disobedience, the Gospel will always be experienced as a challenge. It will challenge the mind, for it confronts false belief with the truth. It will challenge the will, for it cuts to the core of our insistence on turning away from God and going our own way. It will challenge our heart, for for our hearts are devoted to many masters in place of the one true Lord."
---Jerram Barrs, The Heart of Evangelism, p. 267.