Deceit is the attempt to rewrite God's word into something man is able to grasp with his own understanding, thereby diminishing the need for faith. It's presence in the church disturbs the peace of those whom the Holy Spirit is intimate with, though the exact cause may not be immediately discerned. The spirit of deceit always disguises itself as common sense and its effort is to thwart the life and work of the Holy Spirit in the body of Christ. Its main goal is to appeal to the human senses, causing the desires of the mind to become lord of the assembly.
Seasons will arise that will expose the enemy at work, but Satan will fight back in an attempt to discredit any who challenge him. As we confront the worldliness that sets itself up within and against the church, we must remove ourselves from the emotional battle, and concentrate on the spiritual, which is the driving force behind the minds of those who incessantly disregard the Holy Spirit. While God's word is the ultimate victory over the enemy, during the heat of the battle it is faith, held as a shield, that we persevere. The 'worthy adversary' will continually bring subtle conflicts of interest that challenge one thing; God's word...and it is our faith in His word that becomes our shelter.
"Every word of God proves true;
he is a shield to those who take refuge in him.
Do not add to his words,
lest he rebuke you and you be found a liar."