Parallel
Deuteronomy 31:21
Brenton's English Septuagint · Berean Standard Bible
And this song shall stand up to witness against them; for they shall not forget it out of their mouth, or out of the mouth of their seed; for I know their wickedness, what they are doing here this day, before I have brought them into the good land, which I sware to their fathers.
And when many troubles and afflictions have come upon them, this song will testify against them, because it will not be forgotten from the lips of their descendants. For I know their inclination, even before I bring them into the land that I swore to give them.”