וּזְרַעְתִּ֤יהָ לִּי֙ בָּאָ֔רֶץ וְרִֽחַמְתִּ֖י אֶת־לֹ֣א רֻחָ֑מָה וְאָמַרְתִּ֤י לְלֹֽא־עַמִּי֙ עַמִּי־אַ֔תָּה וְה֖וּא יֹאמַ֥ר אֱלֹהָֽי׃ (פ)
Rashi on Hosea
And I will sow her for Me in the land As one who sows a se’ah in order to gather many korim, so will many proselytes be added to them. [from Pesachim 87b]