54. Doctrine not only makes the Word understandable, but also to shine, so to speak, and that is because the Word is not understood apart from doctrine and is like a lampstand without any light, as we showed above. Doctrine is what makes the Word understandable, therefore, so as to be like a lampstand with its lamp lit. A person then sees much more than he saw before, and also understands what he had not understood before. Dark and conflicting passages he either does not see and passes on by, or sees and explains them so as to be in harmony with the doctrine.

The Word’s being viewed in the light of doctrine, and moreover explained in accordance with it, is something experience in the Christian world attests. For the Protestant Reformed all see the Word in the light of their doctrine and explain the Word in accordance with it. Roman Catholics likewise see the Word in the light of their doctrine and explain it in accordance with that doctrine. Indeed, Jews do the same. Consequently falsities are seen in the light of a false doctrine, and truths in the light of a true doctrine.

It is apparent, therefore, that a true doctrine is like a lamp shining in darkness, and like a signpost pointing the way.

Doctrine, however, must not only be drawn from the Word’s literal sense, but it must also be verified by it. For if not verified by it, doctrinal truth has the appearance of having only man’s intelligence in it, and not the Lord’s Divine wisdom, and in that case doctrine would be like a house in the air and not on the ground, thus one without its foundation.

43. Truths in the Word’s literal sense are meant by the foundations of the wall of the New Jerusalem in Revelation 21. This follows from the fact that the New Jerusalem means a new church in respect to doctrine, as shown in The Doctrine of the New Jerusalem Regarding the Lord 62, 63. Its wall, therefore, and the foundations of the wall, can only mean the outer component of the Word, which is its literal sense; for that is the origin of doctrine, and through doctrine, the church. Moreover, doctrine is like a wall which, with its foundations, surrounds a city and protects it.

Respecting the wall of the New Jerusalem and its foundations, we read in the book of Revelation the following:

(The angel) measured (the city Jerusalem’s) wall, a hundred and forty-four cubits, (which was) the measure of a person, that is, of an angel. (Revelation 21:17)

And the wall had twelve foundations, “adorned with all kinds of precious stones”:

The first foundation was jasper, the second sapphire, the third chalcedony, the fourth emerald, the fifth sardonyx, the sixth sardius, the seventh chrysolite, the eighth beryl, the ninth topaz, the tenth chrysoprase, the eleventh jacinth, and the twelfth amethyst. (Revelation 21:19-20)

The number 144 symbolizes all the truths and goods of the church drawn from the Word’s literal sense, and so does the number 12. A person symbolizes intelligence; an angel, Divine truth from which that intelligence originates; measuring, their character; the wall and its foundations, the Word’s literal sense; and precious stones, the Word’s truths and goods in their sequence, from which doctrine originates, and through doctrine, the church.