There is so much confusion about spiritual warfare today: binding and losing Satan through prayer; shouting to Satan and his hellish minions to leave a church or place of worship where any Christian gathering is taking place; seeing spiritual battle as a "cosmic dualism" between good and evil; superstitions in attributing anything negative in our lives to the work of Lucifer; and most disconcerting, saying that Christians can be demonized (Neil Anderson). Believers tend to forget that Satan maybe mighty, but Jesus Christ is Almighty--and the gates of hell shall not prevail against the Lord and His church.
Watson speaks "from the grave" and points us back to Scriptural reality. This simple, biblically rich quote from Thomas is lucid, succinct, and spot on target on resisting Satan and living holy for the Lord. The "steal of righteousness" is the greatest resistance against our "ancient foe." May his words encourage you to "submit yourselves to God; resist the devil and he will flee" -James 4:7. IOW, the emphasis is not trying to battle demons, but living for Christ.
"Be sober-minded; be watchful. Your adversary the devil prowls around like a roaring lion, seeking someone to devour. Resist him, firm in your faith, knowing that the same kinds of suffering are being experienced by your brotherhood throughout the world." -1 Peter 5:8-9 (ESV)
"Another subtlety is to draw men to evil, sub specie boni, under a pretense of good. -- The pirate doeth mischief by hanging out false colors; so does Satan by hanging out the colors of religion. He puts some men upon sinful actions, and persuades them much good will come of it. He tells them in some cases that they may dispense with the rule of the Word, and stretch their conscience beyond that line, that they may be in a capacity of doing more service. As if God needed our sin to raise his glory."