Christ’s words at the Last Supper were: “You call Me Master and Lord, and you say well, for so I am” (John xiii. 13).
We call Christ “Our Lord” because He is our Creator, Redeemer, Lawgiver, Teacher, and Judge.
Christ is our Creator: “In Him were all things created in heaven and on earth, visible and invisible” (Col. i. 16), and by His Son God made the world (Heb. i. 2). St. John calls Christ the Word, and says: “Without Him was made nothing that was made” (John i. 3). Christ is our Redeemer. By Him we are set free from the slavery of the devil (1 Pet. i. 18). Hence the Apostle says: “Know ye not that … ye are not your own, for you are bought with a great price” (1 Cor. vi. 19). He is also our Lawgiver, for He developed the teaching of the Ten Commandments, and gave the two precepts of love. He called Himself the “Lord of the Sabbath” (Luke vi. 5). Christ is our Teacher, because He taught men to be like to God, and in John xiii. 13, He calls Himself our Master. Christ is also our Judge, for He will come again in glory to summon all mankind before His judgment-seat and separate the sheep from the goats (Matt. xxv. 31, 32). Then will the just as well as the wicked address Him, saying: “Lord, when did we see Thee hungry or thirsty, or a stranger, or naked, or sick, or in prison?” (Matt. xxv. 37, 44.) “He is the blessed and only mighty, the King of kings and Lord of lords … to Whom be honor and empire everlasting. Amen” (1 Tim. vi. 15, 16).
This article, Jesus Christ is Our Lord is a post from The Bellarmine Forum.
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