וַיָּ֧שֶׂם אֶת־הַשְּׁפָח֛וֹת וְאֶת־יַלְדֵיהֶ֖ן רִֽאשֹׁנָ֑ה וְאֶת־לֵאָ֤ה וִֽילָדֶ֙יהָ֙ אַחֲרֹנִ֔ים וְאֶת־רָחֵ֥ל וְאֶת־יוֹסֵ֖ף אַחֲרֹנִֽים׃
Targum Jonathan on Genesis
and placed the concubines and their sons foremost; for he said, If Esau come to destroy the children and abuse the women, he will do it with them, and meantime we will arise and encounter him in fight; and Leah and her children after, and Rahel and Joseph after them.