3931. 'And she took Zilpah her servant-girl' means an affirmative means through which [the external man and the internal] could be joined together. This is clear from the meaning of 'a servant-girl' as an affirmative means that serves to join the external man to the internal, dealt with in 3913, 3917.

3917. 'And she gave him Bilhah her servant-girl as his wife' means that a link with the affirmative means was established. This is clear from the representation of 'Bilhah', and from the meaning of 'a servant-girl' as an affirmative means, dealt with just above in 3913; and from the meaning of 'giving as his wife' as establishing a link.