One day as the angels came to present themselves before the Lord, Satan, The Accuser, came with them.  “Where have you come from?” the Lord asked Satan.

And Satan replied, “From earth, where I’ve been watching everything that’s going on.”

Then the Lord asked Satan, “Have you noticed my servant Job?  He is the finest man in all the earth - a good man who fears God and will have nothing to do with evil.”

“Why shouldn’t he, when you pay him so well?” Satan scoffed.  “You have always protected him and his home and his property from all harm.  You have prospered everything he does - look how rich he is!  No wonder he ‘worships’ you!  But just take away his wealth, and you’ll see him curse you to your face.”

And the Lord replied to Satan, “You may do anything you like with his wealth, but don’t harm him physically.”

So Satan went away, and sure enough not long afterwards when Job’s sons and daughters were dining at the oldest brother’s house, tragedy struck. Job

Then Satan entered into Judas Iscariot, who was one of the twelve disciples, and he went over to the chief priests and captains of the temple guards to discuss the best way to betray Jesus to them. Luke

If the good news we preach is hidden to anyone, it is hidden from the one who is on the road to eternal death.  Satan, who is the god of this world, has made him blind, unable to see the glorious light of the gospel that is shining upon him, or to understand the amazing message we preach about the glory of Christ, who is God.
2 Corinthians

God never sent those men at all; they are “phonies“ who have fooled you into thinking they are Christ’s apostles.  Yet I am not surprised!  Satan can change himself into an angel of light, so it is no wonder his servants can do it too, and seem like godly ministers. 2 Corinthians

“Simon, Simon, Satan has asked to have you, to sift you like wheat, but I have pleaded in prayer for you that your faith should not completely fail.” Luke

Be careful - watch out for attacks from Satan, your great enemy.  He prowls around like a hungry, roaring lion, looking for some victim to tear apart. 2 Peter

Then the devil, who betrayed them, was thrown into the lake of fire that burns with sulfur, joining the beast and the false prophet.  There they will be tormented day and night forever and ever. Revelation

Then there was war in heaven.  Michael and the angels under his command fought the dragon and his angels.  And the dragon lost the battle and was forced out of heaven.  This great dragon - the ancient serpent called the Devil or Satan, the one deceiving the whole world - was thrown down to the earth with all his angels. Revelation

Then the angel showed me Joshua the high priest standing before the angel of the Lord.  Satan was there at the angel’s right hand, accusing Joshua of many things.  And the Lord said to Satan, “I, the Lord, reject your accusations, Satan!  Yes, the Lord who has chosen Jerusalem, rebukes you.  This man is like a burning stick that has been snatched from the fire.”

Joshua’s clothing was filthy as he stood there before the angel.  So the angel said to the others standing there, “Take off his clothes.”  And turning to Joshua he said, “See I have taken away your sins, and now I am giving you these fine clothes.” Zechariah