Such a day did indeed follow immediately after the days of signs that had occurred in heaven and on earth.
It is known that the Lord’s day, the day of Jehovah, was anciently the Sabbath, the seventh day, sanctified by the Lord’s rest after the creation of the world.
Especially great was the day of that Sabbath before which Jesus was crucified. This was because, according to the Law, both the Sabbath and the Jewish Passover were then being celebrated.
The Passover was the remembrance of the people’s passage from Egypt into the promised land. But according to the grace and truth that appeared to the world for the salvation of the whole world, that Sabbath day was still greater.
It was for the leading of all from death to eternal life. By surpassing excellence it was great and glorious.
The Church explains this in one of her dogmatika, the dogmatikon of Great Saturday at Vespers before Pascha.
“Today the great Moses mystically prefigured this day when he said,” the Church sings, “‘And God blessed the seventh day.’ For this is the blessed Sabbath. This is the day of rest, on which the Only-begotten Son of God rested from all His works.
“Through the divine economy of death He kept Sabbath in the flesh. Then, returning again through the resurrection to what He was, He granted us eternal life.”
Yet the Old Testament Sabbath does not constitute, in relation to Jesus Christ, the day of the Lord according to the preacher of God. For the Lord’s struggle on the Sabbath day itself was still continuing.
The pains of death still held Him according to the flesh in the tomb. Rather, the following day is meant.
This day, the day of the Lord’s resurrection, is the day of the true Pascha, or the bringing of the human race from death to life. It became the Lord’s day, hemera kyriake.
This is what the first day of the week is called at the very beginning of the apostolic Church, as we see in Revelation.
Saint Paul, in his Epistle to the Hebrews, explained in full detail that the concept of the day of the Lord, according to David’s prophecy, must be transferred from the Sabbath properly so called to the day of new rest in Jesus Christ.
Indeed, these two days, the Sabbath day and the first day, then merged, so to speak, into one. The Lord’s resurrection took place on the very boundary between them.
This is clear from the Gospel history, where it is mentioned partly as having occurred at the beginning of the following day.
On the Sabbath itself, when the Lord’s body rested in the tomb, the Lord, as God, descended in soul into Hades. There He manifested His glory to the Old Testament believers.
In the same way, when the Sabbath had passed, He arose also in the body, to establish His gracious kingdom upon the earth.
On such a day, the day of resurrection or the first day of the week, there also appeared that about which the Apostle was now properly speaking: the outpouring of the Spirit of God.
It was a great and glorious, or bright and illumined, day. On this day, according to the prophet’s word, the gifts of divine knowledge had to be poured out upon all flesh.
Thus prophecies, visions, and revelations had to become the possession of all believers, without distinction of nations, sex, or age.
Indeed, in another of his sermons Saint Peter mentions all those days instead of one day. “All the prophets,” he says, “foretold these days.”
Therefore, under the name of the day of the Lord foretold by the prophet Joel, one may understand, according to the apostolic word, also the whole time that has come in Christ Jesus from His resurrection.
Yet the day of the resurrection is like the morning of the full, great day of grace, “the beginning of another, eternal life,” as we sing of Christ’s day.
In general, every day of our feasts, the feasts of the Lord, may rightly be called one of the Lord’s days. For all feasts in the Old Testament Church were also called Sabbaths of the Lord.
The prophets foretold the days of our salvation, one concerning one day and another concerning another. One, for example, spoke of the Ascension, another of the Nativity, and another especially of Christ’s Baptism.
Yet among them the day of Christ’s resurrection is “the one king and lord of Sabbaths,” according to the Church’s expression.
There is no doubt that the day of light and revelation must be the Lord’s great and illumined day. But had it truly arrived according to the prophecy? This especially had now to be explained to the Apostles’ hearers in Jerusalem.
That Jesus Christ had been crucified was known. But that He had also risen, which the Jews did not believe, was now the chief point needing explanation concerning the day of the Lord.
And now this too has been proved, not only by witnesses, but even by prophecies. Where then is the risen Jesus? This question presented itself to the Jews of its own accord. Therefore the Apostle continued: