And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman. Miriam and Aaron spake against Moses - It appears that jealousy of the power and influence of Moses was the real cause of their complaint though his having married an Ethiopian woman-האשה הכשית haishshah haccushith - That Woman, the Cushite, probably meaning Zipporah, who was an Arab born in the land of Midian - was the ostensible cause.
Related Commentaries of Numbers 12:1
Numbers 12:1
1 And Miriam and Aaron spake against Moses because of the Ethiopiana woman whom he had married: for he had married an Ethiopian woman.