דֶּ֣גֶל מַחֲנֵ֥ה אֶפְרַ֛יִם לְצִבְאֹתָ֖ם יָ֑מָּה וְנָשִׂיא֙ לִבְנֵ֣י אֶפְרַ֔יִם אֱלִישָׁמָ֖ע בֶּן־עַמִּיהֽוּד׃
La bannière du camp d’Ephraïm, avec ses légions, occupera le couchant, le phylarque des enfants d’Ephraïm étant Elichama, fils d’Ammihoud,
Rashi
וישם את אפרים AND HE PUT EPHRAIM etc. — i.e. in the blessing he bestowed upon them he put Ephraim’s name before that of Manasseh, so giving him precedence over his brother when the Israelites encamped and marched beneath their banners in the wilderness (cf. Numbers 2:18 and Numbers 10:22), and when at the dedication of the altar by the princes of the tribes each brought his gifts (cf. Numbers 7:48 Numbers 7:54). (see Genesis Rabbah 97:5).