4589. 'For this also is a son for you' means spiritual truth. This is clear from the meaning of 'a son' as truth, dealt with in 489, 491, 533, 1147, 2623, 3373, in this case spiritual truth since Benjamin is the son referred to here, who represents the spiritual of the celestial.

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.