עַד־מָתַ֖י רְשָׁעִ֥ים ׀ יְהוָ֑ה עַד־מָ֝תַ֗י רְשָׁעִ֥ים יַעֲלֹֽזוּ׃
여호와여 악인이 언제까지, 악인이 언제까지 개가를 부르리이까
Rashi
ימינך ה' נאדרי בכח THY RIGHT HAND, O LORD, IS GLORIOUS IN POWER to deliver Israel, and thy second right hand dashes the enemy in pieces. But it seems to me that if we have to take it in the sense: Thy right hand is glorious to save, thy right hand dashes in pieces etc. the explanation is that the self-same right hand itself dashes the enemy in pieces, something which it is impossible for a human being — to do two actions with one hand. But the literal sense of the text is: “Thy right hand, that is glorious in power — what does it do?” — “Thy right hand, O Lord, dashes the enemy in pieces”. There are many Scriptural verses exactly in this poetical form, e. g., (Psalms 92:10) “For, behold, thine enemies, O Lord, for behold, thine enemies shall perish” and others similar.
Rashbam
Our verse has to be compared to such verses as Psalms 93,3 נשאו נהרות ה' נשאו נהרות קולם, “the mighty river raised their voices; the mighty rivers made thundering sound.” Or look at Psalms 94,3 עד מתי רשעים ה' עד מתי רשעים יעלוזו, “how long shall the wicked, O Lord, how long shall the wicked exult?” In these various verses (all poetry, of course) the first sentence has not even been completed before the composer begins with the verse following. However, he mentions the subject of whom he speaks in the first half of the verse.
Rashbam
והיו המים, the repetition of the word והיו applying to the same predicate is similar to a construction in Psalms 93,3 נשאו נהרות ה', נשאו נהרות קולם “the ocean sounds, O Lord; the ocean sounds in thunder, etc.” Another such construction is found in Psalms 94,3 עד מתי רשעי ה', עד מתי רשעים יעלוזו?, “for how long shall the wicked O Lord, for how long shall the wicked exult?”