Lord’s Day 52—Questions and Answers #127, #128, and #129. For this final petition of the Lord’s Prayer, this sermon will consider the petition itself, and the worship that is attached to it, as well as the significance of the “Amen” at the end; under three heads: 1. The Contents of this Petition. 2. The Doxology Attached to this Petition. 3. The “Amen” Following this Petition.