Arcana Coelestia #3129
3129. 'And Rebekah had a brother' means the affection for good in the natural man. This is clear from the meaning of 'a brother' and of 'a sister' in the Word - 'a brother' being the affection for good, and 'a sister' the affection for truth, dealt with in 367, 2360, 2508, 2524. For in the natural man, as in the rational, all things there are interrelated like blood relatives and relatives by marriage, 2556, 2739. For that reason also the rational mind as well as the natural mind is called a house or family where parents, brothers, sisters, blood relatives, and relatives by marriage exist in order.
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.