2 Samuel 5:13

David took him more concubines. Thus with increase of power came also the increased gratification of David's weakness and sin. Well for him would it have been if, like Saul, he had been content with one wife. But this enlargement of his harem was gradual, and the list includes all the sons born at Jerusalem. Of these four, namely, Shammuah, Shobab, Nathan, and Solomon. were his children by Bathsheba (see 1 Chronicles 3:5 , where the names are differently spelt). Besides a variation in the spelling, two sons are mentioned in Chronicles, Nogah and an earlier Eliphelet, whose names are not given here, perhaps because they died young. From 1 Chronicles 3:9 we learn that only the names of the sons of wives are given in these tables.