4605. 'Reuben, Jacob's firstborn' means the good of faith. This is clear from the meaning of 'the firstborn' as faith, dealt with in 352, 367, 2435, 3325; also from the representation of 'Jacob' as the good of natural truth, dealt with in 4538, and from that of 'Reuben' as the essential nature of faith. For in the genuine sense 'Reuben' means the truth of faith, 3861, 3866, but after the truth of faith has become good he means the good of faith. Furthermore faith essentially is charity, and so the truth of faith essentially is the good of faith, because it cannot have any existence at all unless it springs from charity - that is, truth cannot have any real existence unless it springs from good. This being so, once a person has been regenerated good occupies the first place, or is the firstborn, see 3325, 3494. This is the reason why 'Reuben, Jacob's firstborn' at this point means the good of faith. A similar instance of this meaning occurs in Moses,

May Reuben live and not die; and his mortal men will be [few in] numbers. Deuteronomy 33:6.

The reason 'Reuben' here means the good of faith is that in the Prophecy of Moses regarding the sons of Jacob, Reuben is placed first and Judah second, thus in a different ordering in this prophecy from that of Jacob in Genesis 49. For, as stated above at the end of 4603, the order in which their names appear is determined by the state belonging to the subject under discussion.

[2] Similarly in John,

I heard the number of the sealed, a hundred and forty-four thousand sealed out of every tribe - twelve thousand sealed out of the tribe of Judah, twelve thousand sealed out of the tribe of Reuben, twelve thousand sealed out of the tribe of Gad. Revelation 7:4-5.

In this case Judah is mentioned first, Reuben second, and Gad third. These three in this place make up a first group; and because the Lord's kingdom is the subject here, 'Judah' means celestial good such as exists in the inmost or third heaven, 'Reuben' spiritual good, which is the same as the good of faith, such as exists in the second or middle heaven, and 'Gad' the good of the natural, such as exists in the first heaven. But a different meaning is found in the prophecy of Deborah and Barak,

Princes in Issachar were with Deborah; and as was Issachar, so was Barak, into the valley he was sent under his command ¹ - into the divisions of Reuben great decrees of the heart. Why do you dwell between two burdens to hear the hissings of the droves? - towards the divisions of Reuben great searchings of the heart. Judges 5:15-16.

Unless he knows what 'Issachar', 'Deborah', 'Barak', and 'Reuben' represent, and what 'princes', 'the valley', 'a division', 'decrees of the heart', 'two burdens' and 'the hissings of the droves' mean, no one can know what these words are used to mean. But 'Reuben', it is evident, means faith here.

Footnotes:

3494. 'And he called Esau his elder son' means the affection for natural good, or the good of life. This is clear from the representation of 'Esau' as the Divine Good of the Natural, dealt with in 3300, 3302, 3322. And because the good of the natural is that which manifests itself in affection and life, it is accordingly the affection for natural good, or the good of life, that 'Esau' represents here. The affection for good in the natural and consequently the good of life is that which is called 'the elder son', whereas the affection for truth and consequently the doctrine of truth is that which is called 'the younger son'. The fact that the affection for good and consequently the good of life is the elder son, that is, the firstborn, is quite evident from the consideration that good reigns in anyone's children at first. Indeed they are in a state of innocence, and a state of love towards their parents or nursemaid, and a state of mutual charity towards playmates, so that good is the firstborn with everyone. This good which is fostered in this state within a person when he is a small child remains with him, for whatever is instilled in infancy acquires life to itself; and because it remains it becomes the good of life. Indeed if a person were devoid of such good as he has had with him from earliest childhood he would not be human but would be more savage than any wild animal of the forest. Not that its presence is apparent, for everything that has been instilled in earliest childhood inevitably appears to be something natural, as is quite evident from being able to walk, from all our other bodily movements, and from the right and proper ways to behave among other people; also from being able to talk, and from so many other abilities. From this it may be seen that good is 'the elder son', that is, the firstborn, and truth therefore 'the younger son', or one born later, for truth is not learned until childhood, adolescent, and adult years are reached.

[2] Each of them, good and truth in the natural or external man, is 'a son', that is to say, a son of the rational or internal man, for whatever comes into being in the natural or external man flows in from the rational or internal man, and from there comes into being and is born. That which does not come into being and is not born from there is not living and human, but is like what you might call body and senses without a soul. Hence both good and truth are called 'sons', and indeed sons of the rational. Yet it is not the rational that produces and gives birth to the natural, but an influx by way of the rational into the natural, an influx coming from the Lord. His 'sons' therefore are all the young children who are born, and after that time whenever they become wise. Also, insofar as the latter are at that time 'young children' - that is, insofar as the innocence of a young child, the love of a child for its parent (who is now the Lord), and mutual charity towards playmates (who are now the neighbour) exist in them, they are adopted by the Lord as 'sons'.