In the NIV, the wordSpiritis capitalized. This means that the translators thought that Paul was referring here to the wisdom and revelation that comes with the Holy Spirit. John 16:13 does say that when the Spirit comes, He will guide you into all truth. So if this is how Paul meant ...
The word "powers" (dunamis) here refer to outward expressions of power: "deed of power, miracle, wonder," though also refer to the more basic definition: "power, might, strength, force."11In other words, they had experienced God's power in their own spiritual lives and had probably witn...