Psalms 45:16-17

16 Your
The pronoun is second masculine singular, indicating the king is being addressed from this point to the end of the psalm.
sons will carry
The prefixed verbal form could be taken as jussive and the statement interpreted as a prayer, “May your sons carry on the dynasty of your ancestors!” The next line could then be taken as a relative clause, “[your sons] whom you will make princes throughout the land.”
on the dynasty of your ancestors;
Heb “in place of your fathers will be your sons.”

you will make them princes throughout the land.
I will proclaim your greatness through the coming years,
Heb “I will cause your name to be remembered in every generation and generation.” The cohortative verbal form expresses the poet’s resolve. The king’s “name” stands here for his reputation and character, which the poet praised in vv. 2–7.

then the nations will praise you
The nations will praise you. As God’s vice-regent on earth, the king is deserving of such honor and praise.
forever.

Psalm 46

Psalm 46. In this so-called “Song Of Zion” God’s people confidently affirm that they are secure because the great warrior-king dwells within Jerusalem and protects it from the nations that cause such chaos in the earth. A refrain (vv. 7, 11) concludes the song’s two major sections.

For the music director; by the Korahites; according to the alamoth style; a song.

17
The meaning of the Hebrew term עֲלָמוֹת (alamoth, which means “young women”) is uncertain; perhaps it refers to a particular style of music. Cf. 1 Chr 15:20.
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