When did the Holy One become magnified? When he had created heaven and earth. And for whose sake did he create it? For the sake of Israel, of whom it is said (in Jer. 2:3): ISRAEL IS HOLY FOR THE LORD, THE BEGINNING OF HIS HARVEST. R. Abba bar Kahana said: The written text spells HIS HARVEST tevu'atoh. Why do we read (qorin) tevu'ato (with a final waw instead of a final he)? Because we only eat from the tevu'atoh (i.e., the interest of the written text) and not from the principal (qeren), since it is preserved for us for the world to come.
Israel as the Interest God Pays From Creation's Principal
Midrash Tanchuma Buber, Bereshit 10:2