Parallel
Exodus 34:16
Brenton's English Septuagint · Berean Standard Bible
and thou shouldest take of their daughters to thy sons, and thou shouldest give of thy daughters to their sons; and thy daughters should go a whoring after their gods, and thy sons should go a whoring after their gods.
And when you take some of their daughters as brides for your sons, their daughters will prostitute themselves to their gods and cause your sons to do the same.