These appear to have been ancient images of household
gods. They were relatively small in size and easily carried. The
teraphim were taken away from Jacob by his daughter Rachel
(Gen. 31). They were probably seen as bringers of good luck.
They are mentioned throughout the earlier record of Hebrew
society, but beginning with the prophet Samuel (I Sam. 1523)
were condemned by association with sorcery and idolatry.
Tenhaeff, W(ilhelm) H(einrich) C(arl) Encyclopedia of Occultism & Parapsychology 5th Ed.
When Josiah conducted his reforms (II Kings. 2324), the destruction
of the teraphim was included among his actions. They
were still being used, however, after the period of the Babylonian
exile (Zech. 102).