Arcana Coelestia#2652
2652. 'The son of Hagar the Egyptian' means into the merely human rational, 'Hagar the Egyptian' being the affection for knowledge, from which affection as its mother that rational was born. This is clear from the meaning of 'the son', who was Ishmael, as the first rational which the Lord had, dealt with in Chapter 16, where Hagar and Ishmael are the subject, and from his representation and that of Hagar the Egyptian who was his mother, also dealt with in that chapter. As regards the first or merely human rational with the Lord being conceived from the Divine celestial as a father, and being born from the affection for knowledge as a mother, see 1895, 1896, 1902, 1910.
Arcana Coelestia#1896
1896. 'Her name was Hagar' means the life of the exterior or natural man. This becomes clear from what has been stated already, and also from the meaning of Hagar' as a foreign woman or one living in foreign parts. 'Foreigners' represented people who were to receive instruction, and living in foreign parts represented instruction, and also rules of life, as shown already in 1463. When it is stated in the Word what a person's name is, as here, that 'her name was Hagar', it means that the name embodies something to which attention should be paid, for 'calling by name' is knowing a person's character, as shown already in 144, 145, 340. Not one particle exists in the Word without a reason and without meaning some real thing in the internal sense.