An imperfect sentence, to be thus completed, This thou shalt do before them, that they may believe. See the like in 2 Samuel 5:8, compared with 1 Chronicles 11:6; and Mark 14:49, compared with Matthew 26:56.
Related Commentaries of Exodus 4:5
Exodus 4:5
5 That they may believe that the LORD God of their fathers, the God of Abraham, the God of Isaac, and the God of Jacob, hath appeared unto thee.