- FACT 1: Separationism is based on the idea of a cosmic Cross in heaven
- FACT 2: Last words of Jesus in Mark are based on Psalm 22.
- FACT 3: Gnostics applied Separationism on the last words of Jesus in Mark that are based on Psalm 22.
Best answer: it is not a coincidence.
Two possibilities:
- The verse based on Psalm 22 was precisely THAT verse because it served to mask the separationist idea by a OT verse.
- The verse based on Psalm 22 was precisely THAT verse because it served to allegorize the separationist idea by a OT verse.
But afterall all is possible.