נִדְמ֥וּ עַמִּ֖י מִבְּלִ֣י הַדָּ֑עַת כִּֽי־אַתָּ֞ה הַדַּ֣עַת מָאַ֗סְתָּ וְאֶמְאָֽסְאךָ֙ מִכַּהֵ֣ן לִ֔י וַתִּשְׁכַּח֙ תּוֹרַ֣ת אֱלֹהֶ֔יךָ אֶשְׁכַּ֥ח בָּנֶ֖יךָ גַּם־אָֽנִי׃
Rashi on Hosea
forget your children For those who stood on Mt. Sinai offered their children as surety for their parents to keep the Torah. [based on Tanhuma, vayigash 2, Mid. Psalms 8:4]