Christians might rightly see this as a reference to the Trinity either talking among themselves or to the angels. I don’t know about Hebrew and Greek but in English there are instances where the words us and our are used by a single individual to refer to himself. According to my Webster’s Dictionary, us and our are, respectively, the objective and possessive cases of* we* and we is “sometimes used by a person in referring to two or more persons including himself and often the person or persons addressed, or by a monarch, author, editor, judge, etc. in referring to himself.”
Since God is the King of kings, the Author of all life, and Judge of the living and the dead, it would seem appropriate for him to use the word we when referring to himself.
Some queen once said, “We are not amused!” This was an instance of a monarch using we to refer to herself, the so-called imperial we.
So, Jews would probably see in these verses instances of God using the imperial us and imperial our and that he was either speaking to himself or speaking to the angels. Or God was referring to himself and to the angels he was addressing when he used the words us and our.