Isaiah 63:4

For the day of vengeance is in mine heart, and the year of my redeemed is come.

For the day of vengeance (is) in mine heart. "Is" - rather, was. This assigns the reason why He has thus destroyed the foe ().

The year of my redeemed - of my people to be redeemed.

Day ... year - here, as in ; , the time of "vengeance" is described as a "day" - that of grace and of 'recompence' to the "redeemed," as a "year." God delights in grace, rather than in vengeance.