Jesus spoke in Matthew chapter 28:
18 And Jesus came and spoke to them, saying, “All authority has been given to Me in heaven and on earth (nothing is left out).
And in John chapter 20:
21 So Jesus said to them again, “Peace to you! As the Father has sent Me, I also send you.“
Jesus has all authority, and He has granted us all authority as well. As we are sent, we are to take up the armor of GOD. If we didn’t need spiritual weaponry, then The Holy Spirit would not have alerted us to the need. We are to triumph in Christ in every area, both the seen and the unseen. We are to be triumphant in Christ in all areas.
Paul wrote by The Holy Spirit in 2nd Corinthians chapter 2:
14 Now thanks be to God Who always leads us in triumph in Christ, and through us diffuses the fragrance of His knowledge in every place.
Paul wrote by The Holy Spirit in Ephesians chapter 6:
10 Now my beloved ones, I have saved these most important Truths for last: Be supernaturally infused with strength through your life-union with the Lord Jesus. Stand victorious with the force of His explosive power flowing in and through you. 11 Put on God’s complete set of armor provided for us, so that you will be protected as you fight against the evil strategies of the accuser!
12 Your hand-to-hand combat is not with human beings, but with the highest principalities and authorities operating in rebellion under the heavenly realms. For they are a powerful class of demon-gods and evil spirits that hold this dark world in bondage.
13 Because of this, you must wear all the armor that God provides so you’re protected as you confront the slanderer, for you are destined for all things and will rise victorious.
14 Put on Truth as a belt to strengthen you to stand in triumph. Put on Holiness as the protective armor that covers your heart.
15 Stand on your feet alert, then you’ll always be ready to share the blessings of peace.
16 In every battle, take faith as your wrap-around shield, for it is able to extinguish the blazing arrows coming at you from the evil one!
17-18 Embrace the power of salvation’s full deliverance, like a helmet to protect your thoughts from lies. And take the mighty razor-sharp Spirit-sword of the spoken Word of God. Pray passionately in the Spirit, as you constantly intercede with every form of prayer at all times. Pray the blessings of God upon all his believers.
We are to walk in Truth, Holiness, peace, faith, a renewed mind, hearing GOD’S Voice, and we are to pray, especially in The Holy Spirit. As we triumph in the spiritual realm, the physical realm will submit and respond accordingly. The physical realm does not act independently of the spiritual realm. We must keep that in mind at all times and not be misdirected by looking at the physical world only.