עַד־יְמַלֵּ֣ה שְׂח֣וֹק פִּ֑יךָ וּשְׂפָתֶ֥יךָ תְרוּעָֽה׃
ביז ער װעט אָנפֿילן מיט געלעכטער דײַן מױל, און דײַנע ליפּן מיט שאַלונג.
Rashi
that the completely righteous will have laughter That is the answer that He will reply with, and I know that it is as you said (8:21), (“He will yet fill your mouth with laughter,”) for...