in mine hand] The words are Gods words, yet the Rod is in Moses hand; it is in Gods hand by vigorous influence, and in Moses hand by outward ministration: as he sword of Gideon, and the sword of the Lord, Judg. 7. 18. may be one and the same Gideons in use, Gods in force, and the power of prevailing with it.
shall be turned into bloud] The Egyptians were bloud-thirsty men, bloudily minded against the Hebrews, and that they might have bloud enough, their waters are turned into bloud. Thus God requites the wicked in their kind, there was no need to turne the whole river into bloud, so farre as it runneth or reacheth: it was enough, that the streames running by Egypt, had the plague, which (when it passed the borders thereof) might be cleare as it was before.