AC 7945 - what seems to be repetition

AC 7945
So did they.
(Exodus 12:28)
That this signifies performance from the will,
is evident from the fact
that it is said a second time "they did,"
and that the first time
it signifies performance from the understanding,
and this second time from the will.
For it is common in the Word
for a thing to be seemingly repeated;
but the first mention relates to the truth
which is of the understanding,
and the second to the good
which is of the will.
The reason is that in every detail of the Word
there is the heavenly marriage,
which is that of good and truth;
and, in the supreme sense,
the Divine marriage,
which is that of the Divine good in the Lord
and of the Divine truth proceeding from Him.
From this also it can be seen
that the Word is most holy.