On the tenth day of the month, a lamb is chosen and kept until the fourteenth, when it is to be slain in the evening. This brings forth a question: why not take the lamb on the first of the month? The reasoning for this is indeed profound. What could have hindered it from being selected on the first day? Why did God ordain that the sacrifice, after being observed for five days, should only be offered at evening? The span of these five days starts from the tenth and culminates at the fourteenth. The fact that the lamb is chosen not on the first but on the tenth signifies the passage of many times and ages before us, through which God has always existed. Following this is our current age, which can also be divided into five periods.
The parable of the Savior aptly reflects this understanding: “For the kingdom of heaven is like a householder who went out early in the morning to hire laborers for his vineyard, and having agreed with the laborers for a denarius a day, sent them into his vineyard. And they went. Going out again about the sixth and ninth hour, he did the same. Finally, going out about the eleventh hour, he found others standing idle, and he said to them, Why do you stand here all day idle? They said unto him, No man hath hired us. He said to them, Go ye also into my vineyard” (Matthew 20:1-7). Here we see our age clearly divided into five distinct times. The first period corresponds to the time when Adam existed in paradise. The second, represented as the “third hour,” corresponds to the age of Noah and his contemporaries. The third, denoted as the “sixth hour,” aligns with the time when God, who is supreme, called Abraham to the truth. The fourth, marked as “about the ninth hour,” corresponds to the era of Moses and the prophets. Finally, “about the eleventh hour,” which signifies the fifth hour, occurs as the day wanes, and at this time, Christ called the Gentiles, who had not been summoned to know God before this. Consequently, the last group declares, “no man hath hired us.” Thus, the lamb is taken beginning on the tenth day, symbolizing the dawn of an age, and it is kept and ultimately slain on the fourteenth at evening, signifying that the sacrament of Christ was not a new or recent practice but was foreknown by the Father since the foundation of the world (cf. Eph. 3:9).
Christ died for us during the final moments of this age, when divine illumination was not yet present, and the earth remained engulfed in ignorance, with worldly individuals tainting hearts with falsehood. Therefore, the Savior, who came to earth, declared: “I am the light of the world” (John 8:12; John 9:5). The saints, referred to as “lights in the world” and holding the word of life, rightly hear the calling: “Ye are the light of the world” (Matthew 5:14), as they have the power to sanctify those in darkness.
You may be surprised to observe an additional aspect in this sacramental event. The lamb is sacrificed on the fourteenth day of the month, when the moon is full, illuminating the world with a deceptive light, yet beginning to wane gradually, thus forfeiting its inherent honor and grace. This analogy illustrates that the prince of darkness, the devil, was glorified throughout creation, symbolized by the moon (seen as the "beginning of the night," Genesis 1:16), representing a false light—the wisdom of this world—that deceives the hearts of the misguided and grants the enemy his fleeting glory. Yet, Christ, the true “Lamb of God, who takes away the sin of the world” (John 1:29), died for us, abolishing the devil's glory. For it needed to diminish progressively as multitudes among the Gentiles turned towards peace and love for God through faith in Him (Psalm 71:7). The Psalms of old proclaimed of Christ: “In his days shall the righteous flourish, and there shall be an abundance of peace, till the moon be no more.” Indeed, in Christ’s era, righteousness illuminated through faith, while peace abounded through turning to God. Furthermore, the prince of darkness, the devil, is also removed from power.
Note, however, that it is stated that the moon is not merely taken away but replaced by something else; for the devil, who initially led humanity to death, is himself defeated in retribution. “Let each one take,” it is said, “one lamb according to his family.” For Christ is made whole in each believer through the communion of the Holy Spirit and shall not be divided, as Paul declares (1 Corinthians 1:13).