2144. In the oak-groves of Mamre. That this signifies the quality of the perception, is evident from the representation and signification of “oak-groves,” and also from the representation and signification of “Mamre.” What “oak-groves” represented and signified in general was shown Part First (n. 1442-1443); and what “the oak-groves of Mamre” represented and signified specifically (n. 1616), namely, perceptions, but such as are human from memory-knowledges [scientific], and from the first rational things thence derived.

[2] What perception is, is at this day utterly unknown, because at this day no one has perception like that of the ancients, especially like that of the most ancients; for these latter knew from perception whether a thing was good, and consequently whether it was true. There was an influx into their rational from the Lord through heaven, whereby, when they thought about any holy thing, they instantly perceived whether it was so, or was not so. Such perception afterwards perished with man, when he began to be no longer in heavenly ideas, but solely in worldly and corporeal ones; and in place of it there succeeded conscience, which also is a kind of perception; for to act contrary to conscience and according to conscience is nothing else than to perceive from it whether a thing is so or is not so, or whether it is to be done.

[3] But the perception of conscience is not from good that flows in, but it is from the truth that from infancy has been implanted in the rational of men in accordance with the holy of their worship, and which has afterwards been confirmed, for this alone do they in such case believe to be good. Hence it is that conscience is a kind of perception, but from such truth; and when charity and innocence are insinuated into this truth by the Lord, there comes into existence the good of this conscience. From these few observations we can see what perception is. But between perception and conscience there is much difference. (See what is said about perception in Part First,n. 104, 125, 371, 483, 495, 503, 521, 536, 597, 607, 784, 865, 895, 1121, 1616; about the perception of spirits and angels, n. 202-203, 1008, 1383-1384, 1390-1392, 1394, 1397, 1504; and that the learned do not know what perception is, n. 1387)

[4] As regards the Lord when He lived in the world, all His thought was from Divine perception, because He alone was a Divine and Celestial Man; for He was the only one in whom was Jehovah Himself, from whom was His perception (as to which see also in volume 1616, n. 1616, 1791). His perceptions were more and more interior in proportion as He approached more nearly to union with Jehovah. Of what quality His perception was at the time here treated of, may be seen from what has been said about the oak-groves of Mamre in Part First (n. 1616); and of what quality it became when He perceived the things that are contained in this chapter, is described in what now follows.

895. The waters were dried up from off the earth. That this signifies that falsities did not then appear, is evident from what has been said. Specifically it signifies that falsities have been separated from the things of the will of the man of this church. The “earth” here signifies man’s will, which is nothing but cupidity; wherefore it is said that “the waters were dried up from off the earth.” His “ground” as said above, is in his intellectual part, in which truths are sown-never in his will part, which in the spiritual man is separate from the intellectual; wherefore it is said afterwards in this verse that the face of the “ground” was dried. With the man of the Most Ancient Church there was ground in his will, in which the Lord sowed goods, and then from the goods the man could know and perceive truth, or from love could have faith; but if this method were followed now, man could not but perish eternally, for his will is wholly corrupted. How the case is with this sowing in man’s will part, or-as is the case now-in his intellectual part, is evident from considering that revelations were made to the man of the Most Ancient Church by means of which he from his infancy was initiated into a perception of goods and truths, but as those revelations were sown in his will part, he without new instruction perceived innumerable things, so that from one general principle he knew from the Lord the particulars and the singulars which now men have to learn and so know, and yet after all they can know scarcely a thousandth part of them. For the man of the spiritual church knows nothing but what he learns, and what he knows in this way he retains and believes to be true. Indeed even if he learns what is false, and this is impressed on his mind as true, he believes it, because he has no other perception than that it is so, for so is he persuaded. Those who have conscience have from conscience a certain dictate, but no other than that a thing is true because they have so heard and learned. This is what forms their conscience, as is evident from those who have a conscience of what is false.