Job 2:5, Rev 12:10, 1 Jn 3:8
In the Old Testament, Satan accused Job of God. (Job 1:9-11, Job 2:5)
Job 1:9 Then Satan answered the Lord, and said, Doth Job fear God for nought? 10 Hast not thou made an hedge about him, and about his house, and about all that he hath on every side? thou hast blessed the work of his hands, and his substance is increased in the land. 11 But put forth thine hand now, and touch all that he hath, and he will curse thee to thy face.
Job 2:5 But put forth thine hand now, and touch his bone and his flesh, and he will curse thee to thy face.
Christ has broken our accusers. (1 John 3:8)
1 John 3:8 He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
Satan, who was accusing us, will be cast out by the power of Christ and tormented in hell forever. (Rev 12:10, Rev 20:10)
Rev 12:10 And I heard a loud voice saying in heaven, Now is come salvation, and strength, and the kingdom of our God, and the power of his Christ: for the accuser of our brethren is cast down, which accused them before our God day and night.
Rev 20:10 And the devil that deceived them was cast into the lake of fire and brimstone, where the beast and the false prophet are, and shall be tormented day and night for ever and ever.