I found this old coin .......
It appears that the wheat is being separated, not from the chaff, but from the grapes.
John 15:5
I am the vine, ye are the branches: He that abideth in me, and I in him, the same bringeth forth much fruit: for without me ye can do nothing.
Rev. 14:19
And the angel thrust in his sickle into the earth, and gathered the vine of the earth, and cast it into the great winepress of the wrath of God.
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On the back of the coin, it appears to be a lion attacking a unicorn.
"This was a potent show of symbolism, for the Lion and the Unicorn had long been regarded as deadly enemies, both being considered as King of the Beasts, the Unicorn ruling through harmony and the Lion through might."
The adversity of the lion and the unicorn comes from ancient Babylonian legend.
During the middle ages, the unicorn became symbolic of Jesus. In christian art and allegorical stories Jesus is represented by the unicorn.
Interesting to note, that translations render the unicorn as "GOAT".
"The word unicorn appears nine times in the King James version of the Bible. In more modern editions, these instances have mostly been changed to “aurochs” (a type of wild ox) or “goat.” The unicorn first appeared in the Bible in an edition called the Septuagint, which was an attempt by a group of scholars in Alexandria around 300-100 B.C. to translate the Hebrew writings into Greek.
http://www.dianapeterfreund.com/books/unicorns/research/
So, considering that the unicorn took on symbolic meaning of representing Jesus and that the word was later changed to "goat", does this not give an different perception to the separation of the "sheep and the goats"?