Exodus 6:7

The adoption of Israel as the nation of God took place at Sinai (Exo 19:5). וגו נשׁאתי אשׁר, "with regard to which I have lifted up My hand to give it" (Exo 6:8). Lifting up the hand (sc., towards heaven) is the attitude of swearing (Deu 32:40 cf. Gen 14:22); and these words point back to Gen 22:16. and Gen 26:3 (cf. Gen 24:7 and Gen 50:24).

Much ado there was to bring Moses to his work, and when the ice was broken, some difficulty having occurred in carrying it on, there was no less ado to put him forward in it. Witness this chapter, in which, I. God satisfies Moses himself in an answer to his complaints in the close of the foregoing chapter (Exo 6:1). II. He gives him fuller instructions than had yet been given him what to say to the children of Israel, for their satisfaction (Exo 6:2-8), but to little purpose (Exo 6:9). III. He sends him again to Pharaoh (Exo 6:10, Exo 6:11). But Moses objects against that (Exo 6:12), upon which a very strict charge is given to him and his brother to execute their commission with vigour (Exo 6:13). IV. Here is an abstract of the genealogy of the tribes of Reuben and Simeon, to introduce that of Levi, that the pedigree of Moses and Aaron might be cleared (Exo 6:14-25), and then the chapter concludes with a repetition of so much of the preceding story as was necessary to make way for the following chapter.

6:7 Then you will know that I am the Lord: The Hebrew word translated know is always based on experience and relationship. The same word is used to describe human sexual relations. To know God as Yahweh is not just to know abstract facts about him, but to be in a relationship with him in which we are always learning who he is and what he wants us to do. This is the only true rescue from the human predicament of sin described in Gen 3–11. The importance of “knowing the Lord” in the book of Exodus is seen in its recurrence, especially in Exod 5–18 (5:2; 7:5, 17; 8:10, 22; 9:29; 10:2; 11:7; 14:4, 18; 16:6, 12; 18:11).