JC Ryle wrote in Perseverance:
There are two points in religion on which the teaching of the Bible is very plain and distinct. One of these points is the fearful danger of the ungodly; the other is the perfect safety of the righteous. One is the happiness of those who are converted; the other is the misery of those who are unconverted. One is the blessedness of being in the way to heaven; the other is the wretchedness of being in the way to hell.
I hold it to be of the utmost importance that these two points should be constantly impressed on the minds of professing Christians. I believe that the exceeding privileges of the children of God, and the deadly peril of the children of the world, should be continually set forth in the clearest colors before the Church of Christ. I believe that the difference between the person in Christ, and the person not in Christ, can never be stated too strongly and too fully. Reserve on this subject is a positive injury to the souls of people. Wherever such reserve is practiced, the careless will not be aroused, believers will not be established, and the cause of God will receive much damage.