The basic tenants of Pelagianism in something of a logical form:
(a) Moral character can be predicated only of volitions.
(b) Ability is always the measure of responsibility
(c) Therefore, every man has always the plenary power to do all that it is his duty to do.
(d) Therefore, the human will alone, to the exclusion of the interference of an internal influence from God, must decide human character and destiny.
(e) Therefore, the only divine influence needed by man or consistent with his character as a self-determined agent is an external, providential, and educational one.
As we look at the basic thought of Pelagianism (from above), what we see is that it is the assertion of the free-will in human beings and in such a way that banished God from the heart. It is a direct and frontal attack on the sovereignty of God. If God is not sovereign over and in the human heart, then He is not sovereign at all. If God is not sovereign over and in the human heart, then He is not God of the human heart. Boiled down, Pelagianism is essentially the teaching that human beings are autonomous from God in their choices and in asserting that it is really an attempt to banish God and His sovereign rule over the human heart.
But who is regulating affairs on this earth today—God, or the Devil? Attempt to take a serious and comprehensive view of the world. What a scene of confusion and chaos confronts us on every side! Sin is rampant; lawlessness abounds; evil men and seducers are waxing “worse and worse” (2 Tim. 3:13). Today, everything appears to be out of joint. Thrones are creaking and tottering, ancient dynasties are being overturned, democracies are revolting, civilization is a demonstrated failure; half of Christendom was but recently locked-together in a death grapple; and now that the titanic conflict is over, instead of the world having been made “safe for democracy”, we have discovered that democracy is very unsafe for the world. Unrest, discontent, and lawlessness are rife every where, and none can say how soon another great war will be set in motion.” (A.W. Pink)
To ask Pink’s question again, “who is regulating affairs on this earth today—God, or the Devil?” Perhaps, though, we should ask the question with a different control element. Who is regulating affairs on this earth today—God or man and his free-will? Perhaps it is thought that this question is something of an inflammatory point, and maybe it is. But it is a needful one. It gets to the point we need to get at. Is man really free as Pelagianism teaches, is man somewhat free as semi-Pelagianism teaches, or is man a slave to either God or the Devil as Augustinianism teaches? It is so true that sin is on the increase and governments are in increasing danger of anarchy. But what is the ultimate cause of that? Is it that man has a free-will and he is giving himself over to sin? Could it be that man will say that the devil is making him do it? Or could it be that God in His sovereignty is turning man over to his sinful heart as Romans 1:18-32 teaches?
But this points to another issue. If man is turned over to sin by God, then isn’t that a bondage of sin which points to the slavery of man in sin? Ah, and who is the puppet-master (so to speak) of those who are in bandage to sin? It is the Devil himself who works in men to do his will. Adam and Eve were in perfect subordination to God before the fall. When they fell they bought into the Serpent’s lie that they would be as God. This is the root of the teaching that man has a free-will and is free to choose what is good and evil for him or herself. The whole worldly system is described in Ephesians 2:1-3 with shocking clarity. “And you were dead in your trespasses and sins, 2 in which you formerly walked according to the course of this world, according to the prince of the power of the air, of the spirit that is now working in the sons of disobedience. 3 Among them we too all formerly lived in the lusts of our flesh, indulging the desires of the flesh and of the mind, and were by nature children of wrath, even as the rest.”
Human beings are born dead in sin and walk in those according to the course of this world. The course of the world is according to the prince of the power of the air. The prince of the power of the air not only sets up the course of the world, but he works in the sons of disobedience. Those who live according to the course of the world and have the prince of the power of the air working in them are those who live in the lusts of their flesh and indulge the desires of the flesh and of the mind. They are by nature children of wrath. In other words, a human being that does not have the kingdom of God in his or her soul lives under the domain of darkness and the devil (Col 1:13).
Therefore, it is true that the world can be seen as being under the dominion of God or the Devil since each human soul is under the dominion of God or of the Devil. One of the blinding influences of the Devil on the human soul is to deceive it into thinking that it has free-will and is not under the dominion of God or the devil. The human soul is either free to live by grace in the soul alone or it is under the dominion of the Devil thinking that it is free of both God and the devil. But God is the One that can turn the soul over to sin and its power as punishment. The sinful world we live in follows the course of the evil one. But in doing so it is being turned over to sin by God Himself. This shows that God is in sovereign control and that free-will is but a blinder put on the soul by the Devil to hide the true condition of the human soul from human beings. That is Pelagianism unmasked.