How many examples do you want?
I've listed many.
Hebrews 6:4-6 - Says if a person could fall (lose salvation) which they can not in my opinion. they can not be resaved, period, it is not a passage about losing salvation, it is a passage dealing wiht returning to law. where salvation can be lost. It is an argument against that. If you can lose salvation. No law will save you again.
2 Peter 2:20-22 - Says a person who has recieved the word of truth, It never said they had faiht in it, or were saved, if they walk away, it will be worse for them. AMEN to that, Imagine having the word which could have saved you and you walked away from it.
Mathew 12:31-32 - Unpardonable sin, Which these men has just commited, (they attributed the work of the HS to satan) Jesus said they were in danger, even though the comited the sin, It means if we do not repent from our state of unbelief we will have no hope. but be condemned, Because all sin will be forgiven but one.
Mathew 19:28 - Sit on thrones? What do you mean?
Mathew 13:20-21 - Again, rcieved the word. But has no root (christ) that is why they walked away.. If you do not have christ as your root. you are not saved. So again, What is your point, this does not say a person lost salvation it says they never had it (no root)
So again, Where does it say a person can have faith, Be born again by God, given eternal life, The seal of the spirit. Justified sanctified, perfected, Adoped. Redeemed (I can go on and on) and lose all of those things?