Those who compiled the scriptures into the Bible as we now have it today, felt that the Lord’s prayer needed something more. It needed an ending - a fitting conclusion to the prayer. The prayer needed a doxology, a crescendo, a satisfying conclusion. And so, this extra line is a sort of reprise of the earlier themes of the prayer. It is very important that we begin to pray be focusing on God, his attributes and how they impact our reality, but it is also fitting to end our prayer with the same realization.
