The Grace Church bulletin gives the order of service for the Sunday morning "worship service." For the sermon time it says: "Worship in the Word." This is on purpose.
I like what Mark Dever says about the Word and worship:
During a daylong seminar on Puritanism that I taught at a church in London, I remarked at one point that Puritan sermons were sometimes two hours long. A member of the class gasped audibly and asked, “What time did that leave for worship?” Clearly, the individual assumed that listening to God’s Word preached did not constitute worship. I replied that many English Protestants in former centuries believed that the most essential part of their worship was hearing God’s Word in their own language (a freedom purchased by the blood of more than one martyr) and responding to it in their lives. Whether they had time to sing, though not entirely insignificant, was of comparatively little concern to them.
—Mark Dever, What is a Healthy Church? (Crossway, 2007), 65, 67.