Charles Ellicott Commentary Psalms 45:4

"And in thy majesty ride on prosperously, Because of truth and meekness [and] righteousness: And thy right hand shall teach thee terrible things." — Psalms 45:4 (ASV)

And in your majesty. —The repetition of this word from the last verse (conjunction included) is suspicious, especially as the Septuagint, followed by the Vulgate, render, “Direct (your arrows or your aim)”.

Ride prosperously ... —Literally, proceed, ride; expressing, according to a common Hebrew usage, by two verbs what we express by adverb and verb.

Because of ... —Better, In behalf of. So Septuagint and Vulgate. There is a difficulty from the absence of the conjunction in the Hebrew before the last of the triad of virtues. The Septuagint have it, but may have supplied it, as the Authorised Version does. Some render, “meek righteousness,” or, slightly changing the pointing, “the afflicted righteous.”

And your right hand shall teach ... —If we keep this rendering, we must picture the warrior with his right hand extended, pointing to the foe whom he is about to strike with his deadly arrows. But even this seems somewhat tame; and since the verb rendered “teach” is used for “shooting arrows” in 1 Samuel 20:20, and “arrows” are mentioned immediately in the next verse, it seems obvious to render: And your right hand shall shoot terrors, or, terribly. .