(Leviticus 23:1-2). I looked up convocations in Strong’s Bible Concordance and found:

• Something called out, i.e., public meeting (the act, the persons, or the place)
• A rehearsal: —assembly, calling, convocation, reading

The idea of the feasts as rehearsals is very interesting to me. It makes me think of the idea of a shadow—what we see when something stands before the light. I’ve said the Law blocked the Light of Jesus—coming to us to fill its requirements on behalf of humankind and making the Law obsolete. It might be more accurate to say, The Law came before the grace and truth of the LORD, Jesus. Like a flashlight beam shining on a headstone and thus, casting a long shadow across the cemetery (II Corinthians 3:7-9). Because the Light is never overcome by the darkness. The darkness is not even dark to God (Psalm 139:12). In the first chapter of the Gospel of John, it says,

4In him was life, and that life was the light of all mankind. 5The light shines in the darkness, and the darkness has not overcome it.
6There was a man sent from God whose name was John. 7He came as a witness to testify concerning that light, so that through him all might believe. 8He himself was not the light; he came only as a witness to the light.
9The true light that gives light to everyone was coming into the world. 

(4:9). And the shadows have been useful—revealing to the world that only a very great Light has cast them, in order to teach and also, proclaiming His coming. The first letter to the Corinthians states,

9However, as it is written:
“What no eye has seen,
what no ear has heard,
and what no human mind has conceived”  —
the things God has prepared for those who love him—

(2:9). So, whatever else these feasts are, they are an instructive rehearsal for what is yet to be revealed in heaven, the home God has prepared for those who love Him.