Some translations set each line of poetry farher to the right than the rest of the text to make it easier to read. The ULB does this with the poetry in 8:6-18, 21-22.
Israel will not trust in Yahweh. Instead, they will trust in their own power, their Gentile allies and the power of false gods. They will be punished because the power of Yahweh is greater than all of these. (See: [[rc://en/tw/dict/bible/kt/trust]] and [[rc://en/tw/dict/bible/kt/falsegod]])