Study
14 And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years:
'An image' or 'images' signify falsities from self-derived intelligence.
(References: Apocalypse Explained 304)
14 The stones were according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, everyone according to his name, for the twelve tribes.