Cult of the l-Human?!

The last of Lambkind was brought to slaughter by the four prophets who called themselves gods, who feared a future prophecy of one of Lambkind overthrowing their rule and religion; with a desperate attempt made by these four gods to save themselves, they began the genocide of all lamb kind a near millennium ago.
As a result, their efforts were almost successful as they had wiped out every last lamb, except one who would soon have its head removed from its body.
With a mighty swing of the executioner's axe, the last of the lambs were killed, and the four gods could finally sigh in relief; however, that one act only set the prophecy in motion and revealed another problem that was not foretold by the prophecy that was much worse than a lamb.
(Hating myself for trying to make this but what the hell here we go)