Lordship and kingship, of course, are problematic terms. To be lord is to be master, which is to be superior in respect to ...

God, the father of heaven, have mercy on us ... Heart of Jesus, most worthy of all praise, have mercy on us. Heart of Jesus, king and center of all hearts, have mercy on us.

According to tradition, this litany, approved in 1899 for public recitation, originated at Marseilles, where devotion to the Sacred Heart became very popular during the early eighteenth century.