Parallel
Exodus 19:11
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
And be ready against the third day: for the third day the Lord will come down in the sight of all the people upon mount Sinai.
and be prepared by the third day, for on the third day the LORD will come down on Mount Sinai in the sight of all the people.