en_tn_condensed/isa/10/22.md

your people, Israel, are

"your people, O Israel, are"

are like the sand of the seashore

"are too many to count, like the sand on the seashore"

Destruction is decreed

"Yahweh has decreed that he will destroy most of those who live in Israel"

as overflowing righteousness demands

"This must be done for the sake of perfect righteousness" or "Yahweh must do this because he is completely righteous"