כְּמַרְאֵ֥ה סוּסִ֖ים מַרְאֵ֑הוּ וּכְפָרָשִׁ֖ים כֵּ֥ן יְרוּצֽוּן׃
The appearance of them is as the appearance of horses; And as horsemen, so do they run.
Rashi on Joel
Like the appearance of horses is its appearance—I.e., in their running.
כְּמַרְאֵ֥ה סוּסִ֖ים מַרְאֵ֑הוּ וּכְפָרָשִׁ֖ים כֵּ֥ן יְרוּצֽוּן׃
The appearance of them is as the appearance of horses; And as horsemen, so do they run.