Eternal security is only promised to those who abide in Christ. So the definition of airo in verse 2 is lifted up huh. Ok When did Jesus ever “lift up” anything that didn’t bear fruit? Did He lift up the fig tree? What about the tree in Luke 13?
“And He began telling this parable: "A man had a fig tree which had been planted in his vineyard; and he came looking for fruit on it and did not find any. And he said to the vineyard-keeper, 'Behold, for three years I have come looking for fruit on this fig tree without finding any. Cut it down! Why does it even use up the ground?' And he answered and said to him, 'Let it alone, sir, for this year too, until I dig around it and put in fertilizer; and if it bears fruit next year, fine; but if not, cut it down.'"”
Luke 13:6-9 NASB
There’s no mistake in definition here. Those that don’t bear fruit are cut down. It’s the same message. The Father is the man who planted the tree and Jesus is the vineyard-keeper.
Your overlooking an important factor here in verse 6. These branches were in Him at one time. That’s why He said anyone who does not ABIDE (to stay, remain, continue) in Me is cast away... In order for them to stay, remain, or continue in Him they must already be in Him. If it is impossible, as you assert, for a person to fail to remain in Christ then this entire message would be completely pointless as He would be warning His 11 faithful apostles of doing something that they are ,according to you, incapable of doing. If you were correct and they were incapable of failing to abide then verse 7 also makes no sense.
“If you abide in Me, and My words abide in you, ask whatever you wish, and it will be done for you.”
John 15:7 NASB
Why would Jesus say IF you abide in Me if they are incapable of failing to abide in Him? Why would He say in verse 4 Abide in Me if they are incapable of failing to abide in Him? John 15 destroys Calvin’s theology. It takes some pretty fancy scriptural acrobatics to interpret John 15 in such a way to be in harmony with Calvin’s theology and in the end it doesn’t line up with other scriptures and it doesn’t make sense at all.