3879. 'She conceived again and bore a son' means spiritual conception and birth from what is external towards that which is more internal still. This is clear from what has been stated in 3860, 3868, where similar words occur.

In Revelation 1:16, the two-edged sword signifies the dispersion of falsities by means of the Word, two-edged because it penetrates both the heart (the will) and the soul (the understanding.) (Apocalypse Revealed 52)