The notion that we enter the Christian life by an act of acceptance is true, but that is not all the truth. There is much more to it than that. Christianity involves an acceptance and a repudiation, an affirmation and a denial. And this not only at the moment of conversion but continually thereafter day by day in all the battle of life till the great conflict is over and the Christian is home from the wars. To live a life wholly positive is, fortunately, impossible. Were any man able to do such a thing it could be only for a moment.
Living positively would be like inhaling continuously without exhaling. Aside from its being impossible, it would be fatal. Exhalation is as necessary to life as inhalation. To accept Christ it is necessary that we reject whatever is contrary to Him. This is a fact often overlooked by eager evangelists bent on getting results. Like the salesman who talks up the good points of his product and conceals its disadvantages, the badly informed soulwinner stresses the positive side of things at the expense of the negative.
– A.W. Tozer