The wisdom of the fathers
THE "I AM THAT I AM"

A more positive assertion of selfhood could not be imagined than those words of God to Moses: I AM THAT I AM. Everything God is, everything that is God, is set forth in that unqualified declaration of independent being. Yet in God, self is not sin but the quintessence of all possible goodness, holiness and truth.

The natural man is a sinner because and only because he challenges God’s selfhood in relation to his own. In all else he may willingly accept the sovereignty of God; in his own life he rejects it. For him, God’s dominion ends where his begins. For him, self becomes Self, and in this he unconsciously imitates Lucifer, that fallen son of the morning who said in his heart, ”I will ascend into heaven, I will exalt my throne above the stars of God. . . . I will be like the Most High.”

Yet so subtle is self that scarcely anyone is conscious of its presence. Because man is born a rebel, he is unaware that he is one. His constant assertion of self, as far as he thinks of it at all, appears to him a perfectly normal thing. He is willing to share himself, sometimes even to sacrifice himself for a desired end, but never to dethrone himself. No matter how far down the scale of social acceptance he may slide, he is still in his own eyes a king on a throne, and no one, not even God, can take that throne from him.
Sin has many manifestations but its essence is one. A moral being, created to worship before the throne of God, sits on the throne of his own selfhood and from that elevated position declares, ”I AM.” That is sin in its concentrated essence; yet because it is natural it appears to be good. It is only when in the gospel the soul is brought before the face of the Most Holy One without the protective shield of ignorance that the frightful moral incongruity is brought home to the conscience. In the language of evangelism the man who is thus confronted by the fiery presence of Almighty God is said to be under conviction. Christ referred to this when He said of the Spirit whom He would send to the world, ”And when he is come, he will reprove the world of sin, and of righteousness, and of judgment.”
The earliest fulfilment of these words of Christ was at Pentecost after Peter had preached the first great Christian sermon. ”Now when they heard this, they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men and brethren, what shall we do?” This ”What shall we do?” is the deep heart cry of every man who suddenly realizes that he is a usurper and sits on a stolen throne. However painful, it is precisely this acute moral consternation that produces true repentance and makes a robust Christian after the penitent has been dethroned and has found forgiveness and peace through the gospel.

The witness of the saints has been in full harmony with prophet and apostle, that an inward principle of self lies at the source of human conduct, turning everything men do into evil. To save us completely Christ must reverse the bent of our nature; He must plant a new principle within us so that our subsequent conduct will spring out of a desire to promote the honor of God and the good of our fellow men. The old self-sins must die, and the only instrument by which they can be slain is the Cross. ”If any man come after me, let him deny himself, and take up his cross, and follow me,” said our Lord, and years later the victorious Paul could say, ”I am crucified with Christ: nevertheless I live; yet not I, but Christ lives in me.”
(from "The Knowledge of the Holy" by A. W. Tozer