As we continue to study the book of Isaiah, it is now necessary to do so in light of the word that has been recently spoken over this Conference. As there is a shift that must take place within our hearts to fully live up to the evangelistic mandate Jesus has given us, that same shift can be observed in the lives of God's servants throughout scripture. That shift speaks not just to a change in our feelings, but also an adjustment in our attitude about ministry, away from an emphasis on a words-based theology of ministry toward a works-based theology. As we move into our Pentecost season, it is necessary to examine the shifting experiences of Isaiah and of the upper room attendees on the day of Pentecost. Lessons from these experiences will help us connect the messages of the Old and New Testaments, which will empower us for greater works in ministry.