Weekly Catechism for 2018 (Heidelberg 1563): LORD’S DAY 48
123. What is the second petition?`
Thy kingdom come. That is: So govern us by Thy word and Spirit, that we submit ourselves unto Thee always more and more; preserve and increase Thy Church; destroy the works of the devil, every power that exalteth itself against Thee, and all wicked devices formed against Thy holy word, until the full coming of Thy kingdom, wherein Thou shalt be all in all.