en_tn_condensed/isa/24/14.md

They will lift up their voices and shout the majesty of Yahweh

The phrase "lift up their voices" is an idiom that means to speak loudly. Alternate translation: "They will sing and shout about the majesty of Yahweh" (See: rc://en/ta/man/translate/figs-idiom)

They will

Here "They" refers to those who are still alive after Yahweh devastates the earth.

and will joyfully shout from the sea

Here "the sea" refers to the Mediterranean Sea which is west of Israel. Alternate translation: "and those in the west towards the sea will shout with joy" (See: rc://en/ta/man/translate/figs-explicit)