Verses 13 and 14 give a summary of why Saul died. If your language has a way of showing that this is not part of the story line, you could use it here.
Here "turned over the kingdom" is an idiom that means to give someone authority over a kingdom. Alternate translation: "made David, son of Jesse, king" (See: [[rc://en/ta/man/translate/figs-idiom]])