15 The LORD will keep you free from every disease. He will not inflict on you the horrible diseases you knew in Egypt, but he will inflict them on all who hate you.

Read Deuteronomy 7:15 Using Other Translations

And the LORD will take away from thee all sickness, and will put none of the evil diseases of Egypt, which thou knowest, upon thee; but will lay them upon all them that hate thee.
And the LORD will take away from you all sickness, and none of the evil diseases of Egypt, which you knew, will he inflict on you, but he will lay them on all who hate you.
And the LORD will protect you from all sickness. He will not let you suffer from the terrible diseases you knew in Egypt, but he will inflict them on all your enemies!