“Then they will deliver you up to tribulation and kill you, and you will be hated by all nations for My name’s sake. And then many will be offended, will betray one another, and will hate one another. Then many false prophets will rise up and deceive many. And because lawlessness will abound, the love of many will grow cold. But he who endures to the end shall be saved."
Our Master knows that some will endure but many will fall away during the end times. And because the latter is likely, He issued the warning to His true disciples.
Therefore, if we say all true believers will definitely endure to the end, even in difficult times, like what fans of eternal security (One Saved, Always Saved, OSAS) would say, we will make Jesus look like a fool.
Only some believers will endure till the end and be saved, according to Matthew 24:13. Other believers who fall away are not saved and, thus, OSAS is not valid.
Notice that, in this Olivet Discourse, Jesus was addressing true believers (Peter, James, John and Andrew), not false believers who were not saved in the first place (Mark 13:3).
If believers are already saved no matter what happens (according to OSAS), why did Jesus warn believers to endure in order to be saved?
Matthew 24:9-13, making Jesus look like a fool and 1Timothy 4:16, making Paul look like a fool.
These two passages also cast huge doubts on the popular belief that we inherit salvation immediately when we make a faith decision to follow Christ or say the sinner’s prayer—without any need to endure or persevere. http://bit.ly/2k279C4