Since we looked at the Creed regarding Jesus during Advent, with more to come during Lent, we turn to the third member of the Trinity, the Holy Spirit. In The Mystery of the Holy Spirit, RC Sproul tells the story of his conversion. But his fiancée was not particularly impressed. She noted that both of them had grown up in the church and professed their faith already. But in a prayer meeting one evening, she experienced the personal Spirit of God. Who is the Holy Spirit? 
Scripture:   1 Corinthians 2:6-16