Yep. A bit like a 7 day publicly displayed tracker of days on a 28 day lunar calendar cycle.

Was "I am the God of your Father" an editorial attempt to distinguish the deity from the gods of Egypt, or from the god of a Mother?

There's some pretty odd details in that book, like in Isaac's supposed patriarchal blessing which discussed "the sons of your mother bow down to you" or it being the only place there's the male form of gebirah ("Great Lady") - a title first applied in the text to Isaac's mother whose name is based on the word for 'chief.' Who is supposedly later followed by a figure 'Deborah' ('bee') who is a leader of the people around the time we now know bees were being imported into Tel Rehov and regularly requeened to avoid genetic drift with local bee populations. Also weird that the events regarding a "land of milk and honey" supposedly take place in a land with no honey and only one discovered apiary.

That apiary gets burned down right around the time Asa allegedly deposed his grandmother the gebirah ("Great Lady").