T. Austin-Sparks emphasizes the importance of standing firm in the Lord, using the imagery of the Tabernacle's boards made of acacia wood that remained standing even when stripped of their outward supports. He illustrates that each board represents individual believers who, despite being cut from their natural roots and shaped by God's hand, are upheld by the redemptive power of Christ. The sermon challenges believers to examine their personal faith and resilience, especially in times of testing, and to recognize that true stability comes from being rooted in Christ. Sparks encourages the congregation to stand firm, even when alone, and to appreciate the vital role of personal faith alongside communal support. Ultimately, he reminds them that their standing is not based on their own strength but on the glory and nature of Christ that covers them.