Article by John Piper
I believe there is a Satan precisely because I believe in Jesus. If Satan is our mythological holdover from a pre-scientific age, then the life-long struggle of our Lord Jesus was mere shadow-boxing. Take Satan and his forces out of the Gospels, and Jesus is left like a fool punching the air.
From the beginning of his ministry (Matthew 4:1–11) to the end (Luke 22:3), Jesus was in conflict with the powers of darkness. And it is the clear teaching of the apostles, Peter (1 Peter 5:8), James (James 4:7), John (1 John 2:13; 3:8; 5:18), and Paul (1 Thessalonians 3:5) that Satan is against the church and must be resisted by faith and the Word of God. We do well to know his tactics.
For example, I have been struck recently at how well Satan knows the Bible and how he loves to quote Scripture in order to destroy faith. Remember how he tried to persuade Jesus to throw himself down from the temple roof? He argued from Scripture! “If you are the Son of God, throw yourself down, for it is written: He will give his angels charge of you” (Matthew 4:6). Note well! Satan does not always try to ruin faith by saying, “The Bible isn’t true.” He often tries to destroy our faith by affirming some passage and using it to lead us into disobedience.