Some translations set each line of poetry farther to the right than the rest of the text to make it easier to read. The ULB does this with the poetry in 1:2-31, which is a vision Isaiah receives. These are the words of Yahweh.
The prophecy of this chapter serves as a warning to the people of the kingdom of Judah. If they do not change their evil ways, Yahweh will punish them. (See: [[rc://en/tw/dict/bible/kt/woe]] and [[:[[rc://en/tw/dict/bible/kt/prophet]] and [[rc://en/tw/dict/bible/kt/evil]])
There are many vivid metaphors used to describe Judah's sin. Their sin is described as a sickness that spreads. (See: [[rc://en/ta/man/jit/figs-metaphor]] and [[rc://en/tw/dict/bible/kt/sin]])
Yahweh uses several rhetorical questions in this chapter. The purpose of these questions is to convince the people of Judah of their sin. (See: [[rc://en/ta/man/jit/figs-rquestion]])