8729. 'A difficult matter they will bring to Moses' means mediation and intercession. This is clear from the explanation above in 8705. Here it says that they will bring the matter to Moses, there however that Moses will bring matters to God; but both statements embody the same meaning.

'Midianites' signify people in the truth of simple good.

(सन्दर्भ: Arcana Coelestia 3242)