Exo 11:5, Isa 47:2 | ESV | STEP | and every firstborn in the land of Egypt shall die , from the firstborn of Pharaoh who sits on his throne , even to the firstborn of the slave girl who is behind the handmill , and all the firstborn of the cattle .

Exodus 11:5

5 and every firstborn in the land of Egypt shall die, from the firstborn of Pharaoh who sits on his throne, even to the firstborn of the slave girl who is ^abehind the handmill, and all the firstborn of the cattle.

Isaiah 47:2

2 Take the millstones and ^bgrind flour,
^cput off your veil,
strip off your robe, uncover your legs,
pass through the rivers.