I think they were Jewish.
Blunt
Polytheistic; it was very much like the ancient Egyptian religion.
maybe by religion and that it was a bigger civilization.
They believed with islam
Kush's religion was Judaism, developed by Abraham, (first king). Abraham proved his loyalty to god by attempting to sacrifice his son as an offering to the lord, but at the last second God sent an angel down to earth to stop Abraham from sacrificing his son. Abraham made the Torah, [Nubian-(of Kush) Bible]. Moses created the Ten Commandments, (Nubian set of rules for religion). the Nubian and Egyptian Religions had some of the same gods and were slightly related. -Hoped this helped :)
They worshipped the same gods as the Egyptians but they also had their own Kushite gods like Apedemak.
Egyptians believed in polytheistic religion, worshipping multiple deities, with gods like Ra and Osiris playing significant roles. Kushites also practiced a form of polytheism, merging Egyptian gods with their own deities in a syncretic belief system.
It is true that Kush was invaded by Rome,
Kush Buildings
The Kingdom of Aksum replaced the Kingdom of Kush as a dominant regional power in northeastern Africa. Aksum emerged around the 1st century AD, establishing a significant trade network and adopting Christianity as a major religion by the 4th century. The rise of Aksum led to the decline of Kush, which had been influential for centuries along the Nile River.
Kush was conquered by Askum.
Egyptians attacked Kush because of Kush's gold and silver.