Numbers 12:1 in the World English Bible
Miriam and Aaron spoke against Moses because of the Cushite woman whom he had married; for he had married a Cushite woman.
Context
1 And Miriam and Aaron spake against Moses because of the Ethiopian woman whom he had married: for he had married an Ethiopian woman.
2 And they said, Hath the LORD indeed spoken only by Moses? hath he not spoken also by us? And the LORD heard it.