I don’t read anywhere in the New Testament that Jesus or the Apostles engaged in ‘spiritual warfare’, binding demons BEFORE they could minister freely somewhere. Talking to our Heavenly Father, yes. Seeking the guidance of the Holy Spirit, yes. Because, through Jesus, by the Spirit we have DIRECT access to the Father - Eph 2.18! The promise of the Father is that when we receive the Holy Spirit, we receive power to become Christ’s witnesses, anywhere on earth, wherever He calls us - Acts 1.4-5,8! It’s simple.