delayed revelation, n.All

Delayed revelation (n.) is ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the old device for letting a tradition grow: the teaching was given at the start but held back until the world was ready.