I only see people being surprised, i don't see the eternal security proponents here.
Why should an eternal security believer get surprised by Christ's righteous judgments?
Matt 25:
31When the Son of Man comes in His glory, and all the angels with Him, He will sit on His glorious throne.
32All the nations will be gathered before Him, and He will separate the people one from another, as a shepherd separates the sheep from the goats.
33He will place the sheep on His right and the goats on His left.
34Then the King will say to those on His right, ‘Come, you who are blessed by My Father, inherit the kingdom prepared for you from the foundation of the world.
35For I was hungry and you gave Me something to eat, I was thirsty and you gave Me something to drink, I was a stranger and you took Me in,
36I was naked and you clothed Me, I was sick and you looked after Me, I was in prison and you visited Me.’
37Then the righteous will answer Him, ‘Lord, when did we see You hungry and feed You, or thirsty and give You something to drink? 38When did we see You a stranger and take You in, or naked and clothe You? 39When did we see You sick or in prison and visit You?’
40And the King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers of Mine, you did for Me.’
41Then He will say to those on His left, ‘Depart from Me, you who are cursed, into the eternal fire prepared for the devil and his angels.
42For I was hungry and you gave Me nothing to eat, I was thirsty and you gave Me nothing to drink,
43I was a stranger and you did not take Me in, I was naked and you did not clothe Me, I was sick and in prison and you did not visit Me.’
44And they too will reply, ‘Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?’
45Then the King will answer, ‘Truly I tell you, whatever you did not do for one of the least of these, you did not do for Me.’
46And they will go away into eternal punishment, but the righteous into eternal life.”