Job 1:9

“Then Satan answered the Lord, and said, doth Job fear God for nought.] Satan does not deny any part of Job’s character, nor directly charge him with anyone sin; which shows what a holy man Job was, how exact in his life and conversation, that the devil could not allege any one thing against him; nor does he deny that he feared the Lord; nay, he owns it, only suggests there was a private reason for it; and this he dares not affirm, only puts it by way of question, giving an innuendo, which is a wretched way of slander many of his children have learnt from him: he insinuates that Job’s fear of God, and serving him, was not “for nought”, or “freely” f42, it was not out of love to him, or with…”

“fear God for naught--It is a mark of the children of Satan to sneer and not give credit to any for disinterested piety. Not so much God's gifts, as God Himself is "the reward" of His people (Gen 15:1).”

“Doth Job fear God for nought? - “Is his religion disinterested? Would not anyone be willing to worship God in such circumstances?” The idea is that there was nothing genuine about his piety; that religion could not be tried in prosperity; that Job had an abundant compensation for serving God, and that if the favors conferred on him were taken away, he would be like the rest of mankind. Much of the apparent virtue and religion of the world is the result of circumstances, and the question here proposed “may,” it is to be feared, be asked with great propriety of many professors of religion who are rich; it “should” be asked by every professed friend of the Most High, whether his religion is not…”

“For nought - Out of pure love and respect to thee? No. It is policy, not piety, that makes him good; he doth not serve thee, but serveth himself of thee, serving thee for his own ends. Job 1:12”

“1:9-11 Job has good reason (Hebrew khinnam; see study note on 2:3) to fear God: The wisdom tradition links piety with prosperity. Satan went a step further by suggesting that Job’s piety was contingent upon his affluence.”

“Doth Job: Job 1:21, Job 2:10, Job 21:14, Job 21:15; Mal 1:10; Mat 16:26; Ti1 4:8, Ti1 6:6 Job 1:10”

“9-11 Then Satan answered Jehovah, and said, Doth Job fear God for nought? Hast Thou not made a hedge about him, and about his house, and about all that he hath on every side? Hast Thou not blessed the work of his hands, and his substance is increased in the land? But put forth Thine hand now, and touch all that he hath: truly he will renounce Thee to Thy face. Satan is, according to the Rev 12:10, the κατήγωρ who accuses the servants of God day and night before God. It is a fact respecting the invisible world, though expressed in the language and imagery of this world. So long as he is not finally vanquished and condemned, he has access to God, and thinks to justify himself by denying the…”