en_tn/2ki/06/32.md

son of a murderer

This means that he (the king of Israel) has the characteristics of a murderer.

to take away my head

AT: "to cut off my head?" (rc://en/ta/man/translate/figs-euphemism) or AT: "to kill me?" (See: rc://en/ta/man/translate/figs-synecdoche)

this trouble

This "trouble" refers to the famine in Samaria and the suffering it caused.

Why should I wait for Yahweh any longer?

AT: "I will not wait any longer for help from Yahweh!" (See: rc://en/ta/man/translate/figs-rquestion)