In One Powerful Promise, Pastor Todd Doxzon reflects on the promises of God, but also how humans tend to sometimes fall short on promises. He emphasizes that unlike humans, God always fulfills His promises, especially His promise of the Holy Spirit. The Holy Spirit is given as the ultimate gift that empowers believers, brings peace, and bears fruit in their lives. He encourages listeners to stay connected to God, who is the source of power, peace, and spiritual productivity. Just as a branch is connected to a vine, God’s life flows through each of us and brings ultimate peace.