Good comments and interesting observation. At the moment the verse editor for bible passages has some limitations around what can be added and you will find that the verse numbers won't be displayed correctly for pre-pended text slides. We use response text at the end of of bible passages so it doesn't pick up this problem. In this situation it is probably best to not show the verse numbers.
An alternate approach would be to use a quick slide (or a song for re-use) with the pre-liturgy as a separate item in the playlist before the gospel reading. So this would be presented and then immediately the bible reading is brought up. You can reuse the bible theme on the quick slide so the appearance would be the same.
You will need to create two themes - one with the Title text set to show (maybe named "General Readings") and another with the Title text set to hidden ("Gospel Readings"). Apply the themes to the readings as appropriate.