The author stops using the metaphor of a husband/wife relationship and begins using a new illustration using lawsuits. God is suing the people of Israel because of all the wrong they have done. (See: [[rc://en/ta/man/translate/figs-metaphor]])
Lawsuits are special cases where people go to court when they have a legal issue to resolve between them. Normally, one party is accusing another party of having done wrong.
Metonymy is used in the first few verses of this chapter. Metonymy is a figure of speech in which a thing or idea is called not by its own name, but by the name of something closely associated with it. Bloodshed is associated with murder. Stumbling represents sinning. (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/tw/dict/bible/kt/sin]])