Deuteronomy 7:15

And will take away from thee all sickness
Bodily sickness and diseases, prevent the coming of them, or remove them when come:

and will put none of the evil diseases of Egypt which thou knowest
upon thee;
meaning either the plagues that were inflicted upon them to oblige them to let the Israelites go, of which they had perfect knowledge; or else some noxious and nauseous diseases, which were common among, and peculiar to, the Egyptians, particularly what is called the botch of Egypt; see ( Exodus 15:26 ) , likewise the leprosy; (See Gill on Leviticus 13:2), (See Gill on Deuteronomy 28:27).

but will lay them upon all them that hate thee;
with which God sometimes punishes his and his people's enemies; see ( Judges 5:9 ) ( Revelation 16:10 Revelation 16:11 ) .