Erlo Stegen emphasizes the necessity of being renewed in Christ to receive the new wine of the Holy Spirit, as illustrated in Matthew 9:17. He explains that just as old wineskins cannot contain new wine due to their rigidity, our old ways and habits must be transformed to embrace the fresh work of God in our lives. Stegen warns that without daily renewal, believers risk losing the blessings of the Spirit and may even face spiritual stagnation. He challenges the congregation to introspect and identify any remnants of their old selves that could hinder their spiritual growth. Ultimately, the message calls for a commitment to continual renewal in order to fully experience the new life in Christ.