Go, and gather the elders of Israel together, and say unto them, The LORD God of your fathers, the God of Abraham, of Isaac, and of Jacob, appeared unto me, saying, I have surely visited you, and seen that which is done to you in Egypt: Elders of Israel - Though it is not likely the Hebrews were permitted to have any regular government at this time, yet there can be no doubt of their having such a government in the time of Joseph, and for some considerable time after; the elders of each tribe forming a kind of court of magistrates, by which all actions were tried, and legal decisions made, in the Israelitish community.
I have surely visited you - An exact fulfillment of the prediction of Joseph, Genesis 50:24, God will surely visit you, and in the same words too.