AE 235 [1, 2]

"Out of the mouth" signifies,
in reference to the Lord,
out of the Word,
because the Word is Divine truth,
and this proceeds from the Lord,
and what proceeds from the Lord
and flows in with a person
is said to be "out of the mouth,"
although it is not from the mouth,
but is like light from the sun.
For the Lord is seen above the heavens
where the angels are
and men have all their intelligence and wisdom.

That those who are "lukewarm,"
that is, "neither cold nor hot,"
who are those that live
according to the doctrine of faith alone
and justification by faith,
are separated from the knowledges from the Word,
is not known to themselves,
for they believe
that they are in knowledges more than others;
but they are not,
indeed, they are in scarcely any knowledge;
and this for the reason
that the principles of their doctrine and religion are false,
and from false principles nothing results but falsities;
therefore when they read the Word,
they keep their minds in their falsities,
and as a consequence, either they do not see truths,
or if they see them
they pass them by or falsify them.
These false principles are,
that salvation is by faith alone,
and that a person is justified by faith.
That they are separated
from the knowledges from the Word
and that they do not see truths therein,
they may know if they will;
for what is more frequently declared by the Lord,
than that they ought to do His words,
His commandments, His will,
and that everyone shall be recompensed
according to his deeds? 

Also that the whole Word
is based upon two commandments,
which are to love God,
and to love the neighbor;
also that loving God is doing His commandments.
What people must do in order to be saved
is said a thousand times in each Testament,
also that hearing and knowing are nothing without doing.