יָדוֹ֙ נָטָ֣ה עַל־הַיָּ֔ם הִרְגִּ֖יז מַמְלָכ֑וֹת יְהוָה֙ צִוָּ֣ה אֶל־כְּנַ֔עַן לַשְׁמִ֖ד מָעֻזְנֶֽיהָ׃
Ibn Ezra on Isaiah
He stretched out His hand. God stretched out His hand, that is, He brought the punishment.
Rashi on Isaiah
the Lord commanded upon Canaan He commanded His summoned ones upon Canaan.