Here "children" means all of their descendants. Alternate translation: "that you and your descendants may prosper" (See: [[rc://en/ta/man/jit/figs-synecdoche]])
The words "good" and "right" have similar meanings and emphasize the importance of right behavior. Alternate translation: "when you do what is right" (See: [[rc://en/ta/man/jit/figs-doublet]])
The eyes represent seeing, and seeing represents thoughts or judgment. Alternate translation: "what is good and right in Yahweh's judgment" or "what Yahweh considers to be good and right" (See: [[rc://en/ta/man/jit/figs-metaphor]])