7780. 'Even to the firstborn of the servant-girl who is behind the mill' means falsified truths of faith that occupy the very last place. This is clear from the meaning of 'the firstborn' as faith, dealt with immediately above in 7779, and since faith is meant, so is truth in its entirety because truth, being that which one ought to believe, is the component of faith; and from the meaning of 'a servant-girl' as a rather external affection for truth, or an affection for knowledge, dealt with in 1895, 2567, 3835, 3849, and 'the servant-girl behind the mill' as the most external affection for knowledge since 'behind the mill' means that which occupies the very last place. The expression 'behind the mill' is used because 'the mill' has reference to matters of faith. For by means of a mill grain is ground into flour and so prepared for making bread, and 'flour' means truth which results in good, 'bread' the actual good that results from it. Thus 'sitting at the mill' is acquiring and learning the kinds of things that will be of service to faith, and through faith of service to charity. This is why when the ancients described learning the basic elements of faith they described it as 'sitting at the mill', or learning elements even more basic as 'sitting behind the mill'. It is because such things were meant that in His teachings about the final period of the Church the Lord says,

Two women grinding at the mill; one will be taken and the other will be left behind. Matthew 24:41.

These words would never have been used if 'the mill' had not meant matters of faith. For what 'the mill' and 'grinding' mean in the internal sense, see 4335. With regard to the truths of faith that occupy the first place and those that occupy the very last, it should be recognized that the truths of faith which emanate directly from the good of charity occupy the first place, for they are the outward form taken by good, whereas the truths which occupy the last place are bare truths. For when truths derive in succession from good, each degree of them departs further away from it, till at length they become bare truths. This is the kind of truths meant by 'servant-girls behind mills'.

1895. 'She had an Egyptian servant-girl' means the affection for knowledge. This is clear from the meaning of 'a servant-girl' and from the meaning of 'Egypt'. Sarai, who is the mistress or lady, represents and means truth allied to good, as stated already. Truth allied to good is in the genuine sense intellectual truth, but rational truth comes below this and so is inferior. The latter is born from knowledge and cognitions that have been made living by means of an affection corresponding to them. Because this affection is part of the exterior man, it ought to be subservient to intellectual truth, which resides inmostly, in the way that a servant-girl is subservient to her mistress or a maid to the lady of - the house. That affection therefore is what is represented and meant by 'the servant-girl Hagar'.

[2] No one can have much understanding of anything said about these matters until he knows what intellectual truth is in the genuine sense and also in what way the rational is born, namely from the internal man as the father, and from the exterior or natural man as the mother. Unless the two are joined together nothing rational ever comes into being. The rational is not born from knowledge and cognitions, as people suppose, but from the affection for them, as becomes clear merely from the fact that nobody can possibly become rational unless some delight in or affection for such knowledge and cognitions burns within him. The affection constitutes the maternal life itself, while the celestial and spiritual within that affection constitute the paternal life. Consequently it is the degree and the quality of a person's affection that determine the degree and the quality of the rationality that is developed in him. In themselves facts and cognitions are nothing other than things that are dead, or instrumental causes, which are made alive by the life that belongs to affection. This is how everyone's rational man is conceived. The reason why the servant-girl was Egyptian and why that fact is mentioned is that 'Egypt' means knowledge, as has been shown already in 1164, 1165, 1186, 1462,