"'He performs wonders that cannot be fathomed, miracles that cannot be counted. He provides rain for the earth; he sends water on the countryside. The lowly he sets on high, and those who mourn are lifted to safety. He thwarts the plans of the crafty, so that their hands achieve no success. He catches the wise in their craftiness, and the schemes of the wily are swept away. Darkness comes upon them in the daytime; at noon they grope as in the night. He saves the needy from the sword in their mouth; he saves them from the clutches of the powerful. So the poor have hope, and injustice shuts its mouth.'" NIV translation
Eliphaz continues with what appears to be a hymn of praise to God but it also contains the accusation and a hint about the identity of Job's "hidden sin". Basically he is saying that Job's sin is pride and that, if he would simply humble himself and repent, then, God would show him mercy. Have you ever had someone try to use prayer and praise as a weapon to attack you? Their words may seem like they are full of wisdom and the Spirit when, in fact, they are designed to beat you down. That is usually what the "religious" people will do to someone that they think is not living up to their standard of holiness.