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The idea that our bodies are the temple of the Holy Spirit is introduced to the characters while visiting the hospital. They discover that the Spirit of God no longer lives in man-made temples as in Old Testament days, but that we, as Christians, now have the Holy Spirit living within us. Pastor Rufus encourages them to worship God by keeping their bodies, His “living temples,” pure and undefiled.
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The use of words is critical to God. The characters struggle with words that hurt. Pastor Rufus explains that their feelings about the dangerous effects of words are God's feelings that He expresses in Proverbs. After the characters realize what has happened with their use of words, they apologize and make up.