King James Version (KJV) - Deuteronomy 31:21 >

And it shall come to pass, when many evils and troubles are befallen them, that this song shall testify against them as a witness; for it shall not be forgotten out of the mouths of their seed: for I know their imagination which they go about, even now, before I have brought them into the land which I sware.

Jewish Publication Society of America Version (JPS1917) - Deuteronomy 31:21 >

then it shall come to pass, when many evils and troubles are come upon them, that this song shall testify before them as a witness; for it shall not be forgotten out of the mouths of their seed; for I know their imagination how they do even now, before I have brought them into the land which I swore.'