"On the fourteenth day [April 22] of the first month at twilight is the Lord’s Passover. And on the fifteenth day [April 23] of the same month is the Feast of Unleavened Bread to the Lord; seven days [April 23 - April 29] you must eat unleavened bread. On the first day [April 23] you shall have a holy convocation; you shall do no customary work on it. But you shall offer an offering [that is, the confession of the Lord Jesus Christ] made by fire [ that is, from the fire of God's love in the inward man] to the Lord for seven days [April 23 - April 29] . The seventh day [April 29] shall be a holy convocation...".’ ” [Lev.23:5-8][Words in bracket are mine]

The Lord is going to send His angels to gather us up into heaven to spend the seventh day of Passover with Him. This is the holy convocation of the seventh day of Passover. A google search for the convocation produced the following: 

A large formal meeting of people: A convocation (from the Latin convocare meaning "to call/come together", a translation of the Greek ἐκκλησία ekklēsia) is a group of people formally assembled for a special purpose..."

I believe the Lord was referring to the April 29, the seventh day of Passover when He said: "...I say to you, I will not drink of this fruit of the vine from now on until that day [that is, until April 29, 2024] when I drink it new with you in My Father’s kingdom.” [Matt.26:29]

Also Paul appears to infer that the Lord will come back on Passover when he wrote the following: "For I received from the Lord that which I also delivered to you: that the Lord Jesus on the same night in which He was betrayed took bread; and when He had given thanks, He broke it and said, “Take, eat; this is My body which is broken for you; do this in remembrance of Me.” In the same manner He also took the cup after supper, saying, “This cup is the new covenant in My blood. This do, as often as you drink it, in remembrance of Me.” For as often as you eat this bread and drink this cup, you proclaim the Lord’s death TILL HE COMES." [1 Cor.11:23-26]

I believe "till He comes" is refering to the Lord coming for us on the seventh day of Passover on April 29, 2024!!!