And on the fifteenth day the solemn feast: seven days shall they eat unleavened bread.

and in the fifteenth day of this month is a festival, seven days unleavened food is eaten;

On the fifteenth day of this month there is to be a feast; for seven days let your food be unleavened cakes.

And the fifteenth day shall be a solemnity. For seven days, they shall eat unleavened bread.

Et in decimo quinto die mensis hujus solennitas: septem diebus panis infermentatorum comedetur.

And in the fifteenth day of this month is the feast,.... Not of the passover, that was the day before, but of unleavened bread, which began on this day, and lasted seven days, Leviticus 23:6 which is what the Jews call the Chagigah:
seven days shall unleavened bread be eaten; see Exodus 12:15.

The feast - Namely, of unleavened bread.