John Gill Commentary 2 Samuel 5:16

"and Elishama, and Eliada, and Eliphelet." — 2 Samuel 5:16 (ASV)

And Elishama, and Eliada, and Eliphalet .
] Seven more by some other wife or wives; nine are mentioned in (1 Chronicles 3:6–8) ; there being in that account two Eliphalets, and another called Nogah; which two, one of the Eliphalets, and Nogah, might die without sons, as Kimchi thinks, and so are not mentioned here.