And you know, as far as Luke 21:22 goes, Jesus was to "proclaim" certain things, even as the woman at the well believed he would tell them all things when she said,
John 4:25 , I know that Messias cometh, which is called Christ: when he is come, he will tell us all things.
Jesus would later say in Mark
Mark 13:23 But take ye heed: behold, I have foretold you all things.
In the present, he was anointed to preach good tidings, to proclaim liberty to the captives, to proclaim the acceptable year of the LORD which includes proclaiming the day of vengeance of our God
Isaiah 61:1-2 The Spirit of the Lord GOD is upon me; because the LORD hath anointed me to preach good tidings unto the meek; he hath sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to them that are bound; To proclaim the acceptable year of the LORD,
and the day of vengeance of our God; to comfort all that mourn;
In Luke 4 Jesus is handed the book of Isaiah and reads all the above up to a certain place before Jesus closes the book (and without retyping the whole thing)
Jesus stops here
Luke 4:19 To preach the acceptable year of the Lord.
Luke 4:20 And he closed the book, and he gave it again to the minister, and sat down.
And the eyes of all them that were in the synagogue were fastened on him.
Luke 4:21 And he began to say unto them,
This day is this scripture fulfilled in your ears.
So he had just fulfilled "that proclamation" (in their ears) as is told us in Isaiah 61:2 in their very hearing.
He was also"to proclaim the day of vengeance of our God", but Jesus had stopped short before getting to that closed the book and told us what was just fulfilled as far as the acceptable year.
Jesus appears to pick this up again in Luke 21 as he goes on to proclaim the days of vengeance here where all things written may be fulfilled are mentioned here, as Jesus says
Luke 21:22 For these be the days of vengeance, that all things which are written may be fulfilled.
Read before it and then read further in between which covers many things concerning these days of vengeance until he finally gets to the place (10 verses later) where he says,
Luke 21:32 Verily I say unto you, This generation shall not pass away, till all be fulfilled.