NET
63 When you finish reading this scroll aloud, tie a stone to it and throw it into the middle of the Euphrates River.
Darby
63 And it shall be, when thou hast ended reading this book, [that] thou shalt bind a stone to it, and cast it into the midst of the Euphrates;
KJV
63 And it shall be, when thou hast made an end of reading this book, [that] thou shalt bind a stone to it, and cast it into the midst of Euphrates: