"And I give unto them eternal life;

and they shall never perish, neither

shall any man pluck them out of my

hand. My Father, which gave them

me, is greater than all; and no man is

able to pluck them out of my Father's

hand." John 10:28-29

Endurance will not earn us salvation.

It is a gift of God bought by the blood

of Jesus Christ. Not our own works

(perfections), the Word is very clear

on that.

Endurance here is being able to keep

from giving into the pressures of

persecutions (denying Jesus) and

giving into the Antichrist during the

Tribulation.

Which will be hard to do because of the

continuous prospects of being killed if not.