Pride deceives one into believing and eventually doing wrongly. What does it deceive a person into believing?
In this context God quotes Edom as saying, "Who will bring me down to the ground?" Edom dwelt in the mountainous country southeast of Judea, and Petra was their stronghold. They thought their combination of military strength and impregnable position made them impossible to defeat. Yet notice what verse 4 adds: "'Though you exalt yourself as high as the eagle, and though you set your nest among the stars, from there I will bring you down,' says the LORD."
What had pride done? It had deceived them into believing they were secure, self-sufficient, quick-witted, intelligent, and strong enough to withstand anybody. This clearly illustrates that pride's power lies in its ability to deceive us into believing in our self-sufficiency. Even in our everyday relationships with other people, this is a serious deception, but when the deception involves our relationship with God, the level of seriousness reaches alarming proportions.
The Edomites looked at their stronghold and then at themselves and their enemies. They concluded they were stronger than all—they were impregnable! Their evaluation was in error because they left God out of the picture. Therein lies much of the problem concerning pride. Against whom do we evaluate ourselves? Pride usually chooses to evaluate the self against those considered inferior. It must do this so as not to lose its sense of worth. To preserve itself, it will search until it finds a flaw.
If it chooses to evaluate the self against a superior, its own quality diminishes because the result of the evaluation changes markedly. In such a case, pride will often drive the person to compete against—and attempt to defeat—the superior one to preserve his status (Proverbs 13:10). Pride's power is in deceit, and the ground it plows to produce evil is in faulty evaluation.