Reference for Isaiah 63:4

כִּ֛י י֥וֹם נָקָ֖ם בְּלִבִּ֑י וּשְׁנַ֥ת גְּאוּלַ֖י בָּֽאָה׃

For the day of vengeance that was in My heart, and My year of redemption are come.

מחברת מנחם