God made promises to Father Abraham and King David. These promises are revealed in Genesis 22:16-18 and II Kings 7:10-19 respectively:

Genesis 22:16-18
By my own self have I sworn, saith the Lord: because thou hast done this thing, and hast not spared thy only begotten son for my sake: I will bless thee, and I will multiply thy seed as the stars of heaven, and as the sand that is by the sea shore: thy seed shall possess the gates of their enemies. And in thy seed shall all the nations of the earth be blessed, because thou hast obeyed my voice.

II Kings 7:10-19
And I will appoint a place for my people Israel, and I will plant them, and they shall dwell therein, and shall be disturbed no more: neither shall the children of iniquity afflict them any more as they did before, from the day that I appointed judges over my people Israel: and I will give thee rest from all thy enemies. And the Lord foretelleth to thee, that the Lord will make thee a house. And when thy days shall be fulfilled, and thou shalt sleep with thy fathers, I will raise up thy seed after thee, which shall proceed out of thy bowels, and I will establish his kingdom. He shall build a house to my name, and I will establish the throne of his kingdom for ever. I will be to him a father, and he shall be to me a son: and if he commit any iniquity, I will correct him with the rod of men, and with the stripes of the children of men. But my mercy I will not take away from him, as I took it from Saul, whom I removed from before my face. And thy house shall be faithful, and thy kingdom for ever before thy face, and thy throne shall be firm for ever. According to all these words and according to all this vision, so did Nathan speak to David.

And David went in, and sat before the Lord, and said: Who am I, O Lord God, and what is my house, that thou hast brought me thus far? But yet this hath seemed little in thy sight, O Lord God, unless thou didst also speak of the house of thy servant for a long time to come: for this is the law of Adam, O Lord God.

These prophecies are fulfilled in Christ, Who is King of Israel (“Christ” means “Anointed One,” and the anointing referred to is the anointing King David received). Our Lord, though, is not only the ruler of the restored Davidic Kingdom (the Church), but is the King of Kings — the King of All. The only way for peace to have a chance in this world is for all to see Him for Who He is: the King before Whom we must bow and Whom we must obey.

Though this Feast is a new one, promulgated by Pope Pius XI in 1925 in his Encyclical Quas Primas, it is a most awesome and important one! Vive Christus Rex!

On this day, we pray for the conversion of all to Christ, and for all governments to recognize Him as King and conform their laws to His teachings. This is the only way to peace!

Apocalypse 19:15-16:
And out of his mouth proceedeth a sharp two-edged sword, that with it he may strike the nations. And he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness of the wrath of God the Almighty. And he hath on his garment and on his thigh written: KING OF KINGS AND LORD OF LORDS.

Today you may receive a plenary indulgence by praying the Consecration of the Human Race to the Sacred Heart, going to Confession, and receiving the Eucharist. We beg God to bring all people to Him and to be our King. Read more about this on the page about Devotion to the Sacred Heart of Jesus. There will be a Benediction of the Blessed Sacrament after Mass, too.

If you haven’t consecrated your home by Enthronement of the Sacred Heart, today is another perfect day to do so! If you’ve already done so, it is a good day to renew the consecration!

See also the Queenship of Mary (31 May).

Note: In the Novus Ordo, this Feast was moved from the last Sunday in October to the last Sunday of the Season after Pentecost, which is the Sunday before Advent Sunday. The effect of this is to interrupt the relationship between the reign of Christ with His Saints, who are commemorated en masse on 1 November, and the necessity of our recognizing His Kingship now, during this “thousand years” of the Church Age. With the Feast moved to the very last Sunday in the Time After Pentecost, it leads one to believe that Christ isn’t King now, and that all persons and nations don’t need to recognize Him as King now — but that He will be recognized as King only at the end of time when He reveals Himself at His Second Advent. In other words, the moving of the Feast symbolically defeats the very purpose of the Feast, which is to not only honor the very fact of His Kingship, but to pray for the conversion of all people and nations to His Church so that souls will be saved and the social order will conform to the moral law.