2644. 'For I have borne [him] a son in his old age' means that this was accomplished when the days had been completed. This is clear from the explanation of almost the same words in verse 2, dealt with in 2621-2624.

'Luz,' as in Genesis 28, signifies a state wherein truth and good are together in the ultimate principle of order.

(सन्दर्भ: Arcana Coelestia 3730)