12 Heb “this thing.”
13 Heb “on the morrow.”
14 The word “all” clearly does not mean “all” in the exclusive sense, because subsequent plagues involve cattle. The word must denote such a large number that whatever was left was insignificant for the economy. It could also be taken to mean “all [kinds of] livestock died.”
15 Heb “of Egypt.” The place is put by metonymy for the inhabitants.

In other versions

And the next day the Lord did this thing. All the livestock of the Egyptians died, but not one of the livestock of the people of Israel died.

And the next day the Lord did it: All the livestock of the Egyptians died, but not one animal belonging to the Israelites died.

The Lord did this the next day. All the Egyptian livestock died, but none among the Israelite livestock died.

And the Lord did just as he had said. The next morning all the livestock of the Egyptians died, but the Israelites didn’t lose a single animal.

And Yahweh did this thing the next day; all the livestock of Egypt died, but from the livestock of the Israelites not one died.

And the Lord did that thing on the morrow, and all the cattle of Egypt died: but of the cattle of the children of Israel died not one.

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