Exodus 9:3

"The hand of Jehovah will be (הויה, which only occurs here, as the participle of היה, generally takes its form from הוה, Neh 6:6; Ecc 2:22) against thy cattle...as a very severe plague (דּבר that which sweeps away, a plague), i.e., will smite them with a severe plague. A distinction was again made between the Israelites and the Egyptians. "Of all (the cattle) belonging to the children of Israel, not one (דּבּר Exo 9:4, = אחד Exo 9:6) shall die." A definite time was also fixed for the coming of the plague, as in the case of the previous one (Exo 8:23), in order that, whereas murrains occasionally occur in Egypt, Pharaoh might discern in his one the judgment of Jehovah.

In this chapter we have an account of three more of the plagues of Egypt. I. Murrain among the cattle, which was fatal to them (Exo 9:1-7). II. Boils upon man and beast (Exo 9:8-12). III. Hail, with thunder and lightning. 1. Warning is given of this plague (Exo 9:13-21). 2. It is inflicted, to their great terror (Exo 9:22-26). 3. Pharaoh, in a fright, renews his treaty with Moses, but instantly breaks his word (Exo 9:27, etc.).

9:3 Your livestock refers specifically to field animals. Other animals would have boils inflicted upon them in the next plague. • The term all (also in 9:6) is not absolute; it does not mean that every single livestock animal was killed. There were still some left to protect from the hail of the seventh plague (9:20).