In Zechariah 2:4, this signifies the church of people who will receive the Divine proceeding of the Lord on a deep level within themselves. (Apocalypse Explained 629[6])

4869. 'For he did not know that she was his daughter-in-law' means that it did not see it as the truth of the representative Church. This is clear from the meaning of 'a daughter-in-law' as the truth of the Church linked to its good, dealt with in 4843. The reason the truth of the representative Church is meant is that Tamar, to whom 'his daughter-in-law' refers here, represents the Church that was representative of spiritual and celestial things, 4829, 4831. Regarding these matters, see what has been shown above in 4865, 4866, 4868.