You can find the article at SEA here.
Here is an excerpt that addresses a common complaint about the idea that a true believer can become an apostate. I think it is something most of us can relate to as many of us have, at some point, begun down that road to varying degrees. It should also serve as a strong warning for those who may be in this dangerous downward spiral of rebellion and slowly turning from God and becoming more and more hardened to the conviction of the Holy Spirit. If that’s you, get out and repent now. Don’t buy the lie that sin cannot harm you or threaten your eternal destiny.
Those who teach a doctrine of unconditional eternal security sometimes object to the possibility of apostasy by holding that a regenerated person would never wish to return to a life of sin and to become an apostate. This fact is of course altogether true. The answer to the objection lies in the fact that believers can grow cold little by little, and ultimately find themselves with but little desire to return to Christ in penitence and renewed obedience. The steps in apostasy undoubtedly are somewhat as follows: first of all, the individual becomes too busy or unconcerned to maintain a faithful devotional life of Bible meditation and prayer. This results in a certain state of lukewarmness in which it becomes easy to harbor, if only briefly, a sinful desire or attitude. This attitude may be one of envy, pride, hatred, sensuality, or avarice. The unsanctified state of attempting to cling to a “minor sin” for a time in turn promotes the very neglect of Bible reading and prayer which brought about the state of lukewarmness to begin with. As the individual becomes more and more cold spiritually his zeal for the Lord’s cause slackens. After a time overt acts of sin begin to occur in his life. These falls into sin are accompanied by a decreasing concern about sin and its guilt. There comes also a determination, and this is something new, to continue enjoying sin for the time being; the first intention was merely to indulge briefly. There is less and less interest in returning to a holy Christian life as time goes on and the apostasy becomes more severe. All this takes place in spite of fierce inner struggles of conscience, repeated chastisements of God, and generally the warnings of other Christians.
We are again reminded of Jeremy Taylor’s (1613-67) description of the downward progress of the apostate: “First it startles him, then it becomes pleasing, then delightful, then frequent, then habitual, then confirmed; then the man is impenitent, then obstinate, then resolved never to repent, then damned.” [Strong, Systematic Theology, 651]