Arcana Coelestia # 10651
10651. 'And you take their daughters for your sons' means affections for evil linked to truths. This is clear from the meaning of 'taking', when it refers to marriage, as being linked to; from the meaning of 'daughters' as affections for good, and in the contrary sense as affections for evil, dealt with in 2362, 3963; and from the meaning of 'sons' as truths, dealt with in 489, 491, 533, 1147, 3373, 4257, 9807, 10490.
Arcana Coelestia # 533
533. Since nothing further is mentioned about Lamech apart from the fact that be beget sons and daughters, who are the conceptions and births of such a Church, there is no need to pause any longer over him. What these births, or sons and daughters, were, becomes clear from the Church, for the character of a Church determines that of its offspring. Both those Churches called Methuselah and Lamech breathed their last just before the flood.