Exodus 9:5

5 The LORD set a time and said, “Tomorrow the LORD will do this in the land.”

Read Exodus 9:5 Using Other Translations

And the LORD appointed a set time, saying, To morrow the LORD shall do this thing in the land.
And the LORD set a time, saying, "Tomorrow the LORD will do this thing in the land."
The LORD has already set the time for the plague to begin. He has declared that he will strike the land tomorrow.’”

What does Exodus 9:5 mean?

John Gill's Exposition of the Bible
Exodus 9:5

And the Lord appointed a set time
For the coming of this plague, that it might plainly appear it came from him, and was not owing to any natural cause: saying, tomorrow the Lord shall do this thing in the land;
thus giving him time and space, as he had often done before, to consider the matter well, repent of his obstinacy, and dismiss the people of Israel, and so prevent the plague coming upon the cattle, as threatened.

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