Heidelberg Catechism on Thy Kingdom Come
Question 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.
Ps. 103:19. The Lord hath established His throne in the heavens; and His kingdom ruleth over all.
Ps. 86:11. Teach me Thy way, O Lord; I will walk in Thy truth: unite my heart to fear Thy name.
The realm of Nature.
Isa. 40:26. Lift up your eyes on high, and see who hath created these, that bringeth out their host by number: He calleth them all by name; by the greatness of His might, and for that He is strong in power, not one is lacking.
Ps. 102:13, 14. Thou shalt arise, and have mercy upon Zion: for it is time to have pity upon her, yea, the set time is come. For Thy servants take pleasure in her stones, and have pity upon her dust.
The realm of Grace.
Heb. 12:28. Wherefore we receiving a kingdom which cannot be moved, let us have grace, whereby we may serve God acceptably with reverence and godly fear.
The realm of Glory.
Rev. 11:15. The kingdoms of this world are become the kingdom of our Lord, and of His Christ; and He shall reign for ever and ever.
1 Cor. 15:24. Then cometh the end, when He shall have delivered up the kingdom to God, even the Father; when He shall have put down all rule and all authority and power. Verse 28.
Matt. 6:33. Ps. 51:20. Rom. 16:20.
Heidelberg Catechism, Heidelberg Catechism, Revised Edition. (Cleveland, OH: Central Publishing House, 1907), 128–129.