T. Austin-Sparks emphasizes the significance of God's place in His house, drawing from Isaiah 6:1-7, where Isaiah sees the Lord exalted on His throne. He highlights that true fulfillment of God's plan requires recognizing Christ's lordship and the necessity of submission to Him. The sermon illustrates how the glory of God fills the temple, leaving no room for human efforts or self-interest, and stresses that the fullness of the Holy Spirit is contingent upon Christ being Lord in our lives. Sparks connects Isaiah's vision to the New Testament, showing that the church must be characterized by submission and love to attain the fullness of Christ. Ultimately, he calls for a complete surrender to God's will, allowing Him to be all in all.