A comma following After a while would improve clarity, although it isn’t absolutely necessary. The comma after death does need to be replaced with a period (or semicolon, but I know most writers these days prefer to avoid semicolons, lest anyone suspect them of having attended university).
Your village left you behind in the forest to die as a sacrifice to the god of the forest. After a while, the god shows up, but it’s not interested in your death. Instead, it’s looking for a servant.
(IMO, the people of your village are in gross violation of Wheaton’s Law, and you’re better off without them.)