Arcana Coelestia #7728
7728. 'And our livestock also must go with us' means that this - that is to say, worship - must be from the good of truth. This is clear from the meaning of 'livestock' as the good of truth, dealt with in 6016, 6045. The fact that 'going with us' means in order that this good may be the source of that worship - worship in the form of sacrifices and burnt offerings - is self-evident.
Cover
In Genesis 38:14, this signifies truth obscured that pretends to be from good. (Arcana Coelestia 4859) The "high mountains being covered" (Genesis 7:19) signifies that all the good things of charity were extinguished.
(Reference: Arcana Coelestia 795)