John Gill Commentary Luke 6:23

"Rejoice in that day, and leap [for joy]: for behold, your reward is great in heaven; for in the same manner did their fathers unto the prophets." — Luke 6:23 (ASV)

Rejoice you in that day
When they should be hated, discarded, reproached, and anathematized: and leap for joy; as if the greatest honour and happiness imaginable had been conferred on them; and as persons do, when in the greatest rapture:

for behold, your reward is great in heaven, for in the like manner did
their fathers unto the prophets ;
(See Gill on Matthew 5:12).