Ezk 38:4's hook formula is verbatim Pharaoh's (Ezk 29:4). The Gog war is not Gog's. Yahweh hooks the hostile king, summons the cascade, and declares — in a hithpael that occurs nowhere else in the OT with him as subject — that he will magnify and sanctify himself.
Obadiah 1:1–21
Obadiah is twenty-one verses long. It opens with one brother's betrayal of another on a specific day (586 BC) and ends with the declaration לַיהוָה הַמְּלוּכָה — a phrase Psalm 22 also makes, and that appears nowhere else in the canon. The little book carries a large argument.