Eliphaz falsely imputes many crimes to Job, but promises him prosperity if he will repent.
God needs not the good that we do, rather it is for our own good that we merit in doing good.
“For in all that we do well, we are doing good to ourselves and not to God. And hence by the Psalmist it is said, O my soul, thou hast said unto the Lord, Thou art my God, seeing that Thou needest not my goods. (Ps. 16, 2) For He is truly ‘Lord’ to us, because He is also assuredly ‘God,’ Who needs not the good in him that serveth Him, but bestows the goodness which He receives, so that the goodness which is offered up should avail not Himself, but those that first receive and afterwards render back.” (4) -St. Gregory the Dialogist
Women's Prayer Group In Christ 