Egyptologists divide the deities of ancient Egypt into three main groups: stategods, local gods and household gods. State and local gods had temples and received worship through divine rituals; people addressed their prayers to household gods, in the privacy of their own homes; whereas local gods had limited importance in their own town or district, state-gods had responsibility for the well-being of the king, country and (at times) the empire. Some state-gods were always important, but others were elevated by royal patronage from the ranks of the local gods, with new dynasties sometimes promoting the deity of their own original locality.
Biographical Dictionary of Ancient Egypt by Rosalie and Antony E. David
Ancient Egypt. A Reference Guide. EdwART. 2011.