i.e. Rule and govern them. Though he be the son of my concubine, yet he shall not be subject to any other tribe, but shall have an absolute power within himself. What is said of him is to be understood of the rest of the sons of the concubines, and hereby all difference between the sons of the wives and concubines is taken away. It is said of Dan, because he is the first mentioned of that sort. As the rest of the tribes do, having distinct governments and governors amongst them. See Numbers 1:4,16.
Related Commentaries of Genesis 49:16
Genesis 49:16
16 Dan shall judge his people, as one of the tribes of Israel.