Website that supports the concept of spiritual warfare as valid.
http://www.bible.org/page.php?page_id=2473 This site first talks about how the concept of spiritual warfare is used through out the whole bible. In the Old Testament it is apparent that Satan is the enemy of God, and that he actively seeks to oppose God, His purposes, and His people. In the Gospels, Satan is recorded one time when he sought to tempt our Lord to renounce His submission to the Father by acting independently for His own selfish gain. And of course,in the New Testament, Ephesians chapter 6 is one of the most specific texts of the spiritual war. As a conclusion, this site posted the following: “There is a war going on. It is not a war that is like the wars which are currently going on between nations today (although such wars may be a part of the bigger war). It is a spiritual war. It is a war between Satan and his fallen celestial allies and Christ and His church. It is an invisible war in that we fight against unseen forces. It is therefore a war which must be waged by faith, and not by sight. It is a war that we cannot fight in our own strength, but only in the strength which God Himself supplies.”
Website that questions the validity of spiritual warfare.
I could not find a website which questioned the validity of spiritual warfare but I found one that contradicts what many people think spiritual warfare is. Here is what is says:
"How does Peter instruct believers to react to this attack? Not by talking about how you are going to run the Devil out of town or give him a black eye or even two black eyes. Not by binding or rebuking him. Instead, the Scriptures say that we are to "resist him" (1 Pe. 5:9). The same command is given in James 4:7 and Ephesians 6:11,13,14. This is what the Bible specifically, repeatedly, clearly says is to be our strategy when Satan attacks a believer: "Resist the devil and he will flee from you" (James 4:7). Scripture does not say to develop from experience a formula of rebuking, binding, insulting, or arguing with Satan and the demonic. Instead, we are to follow God's explicit instructions on this issue. By habitually following God's Word, we will see the Lord bring stability and character into our lives, including the type of endurance that we need in order to engage in spiritual warfare without fainting in the day of battle."