This means Pekah is the king of Samaria and all of Israel. Alternate translation: "the king of Samaria is Pekah, who is a weak man" (See: [[rc://en/ta/man/translate/figs-explicit]])
This can be stated in positive form. Alternate translation: "If you continue to believe in me, you will certainly remain safe" (See: [[rc://en/ta/man/translate/figs-doublenegatives]])