Yosef Took Five Brothers to Paroh

בראשית פרק מז, ב הֹעְּרַפ יֵנְּפִּל םֵגִּ

צַ

יַו םיִּ שָּנֲא הָּ שִּמֲח חַקָּל ויָּחֶּא הֵצְּקִּמ ו

בבא קמא דף צב/א חמשה אנשים , מאן נינהו חמשה א"ל הכי א"ר יוחנן אותן שהוכפלו בשמות

The Gemara says the five were weak (as evidenced by the repeating of their names in the blessing of Moshe) and were less of a threat to Paroh. The Medrash says the opposite, that the five were the strong brothers (since Moshe repeated their names). In order to lessen the argument, both hold that Moshe doubled the names for a blessing of strength. The Gemara says they were blessed to be strong from now and onwards. The Medrash says they were already strong and were blessed to continue.