Job 5:24 (ESV)

24 You shall know that your tent is at peace, and you shall inspect your fold and miss nothing.

The comfort that Eliphaz offers Job is a conditional comfort. If Job would only confess his guilt, then peace will return to his house. In this way, Eliphaz steps into Satan’s own net. It is Satan who wanted to prove that people serve God only for the sake of God’s blessings!