developped in order to crush down the heresy!!!!!

一旦永遠 is not exceptional!

When HERESY taught that

YOU COULD LOSE YOUR SALVATION,

Saints rebuked back: impossible!

why? because SALVATION meant 

a sinner was redeemed by the SAVIOUR from the God Father,

it is a done deal, it is impossible for God the Father,

the Saviour or the benifitial sinner or any creature

(angel or human being) to un-do this redemption!!!!!!!