And Jehovah shall smite Egypt, smiting and healing; i.e. Jehovah shall indeed "smite Egypt," as already prophesied (Isaiah 19:1-16), but it shall be with a merciful object, in order, after smiting, to "heal."
His smiting shall induce them to "return" to him, and when they return he will forgive and save (comp. Zephaniah 3:8, Zephaniah 3:9; Jeremiah 12:14-16). Egypt was a Christian country from the third century to the seventh; and the Coptic Church (though very corrupt) still remains, knowing Jehovah, and offering the holy oblation of the Christian altar continually.