Reference

Proverbs 13:12

Hope deferred maketh the heart sick: but when the desire cometh, it is a tree of life.
10

Only by pride cometh contention: but with the well advised is wisdom.

11

Wealth gotten by vanity shall be diminished: but he that gathereth by labour shall increase.

12

Hope deferred maketh the heart sick: but when the desire cometh, it is a tree of life.

13

Whoso despiseth the word shall be destroyed: but he that feareth the commandment shall be rewarded.

14

The law of the wise is a fountain of life, to depart from the snares of death.

Counter-Arguments

The strongest case that this verse does not belong in this theme.

Conditional Immortality (Hell context)

This verse speaks metaphorically about the emotional impact of delayed gratification and fulfilled desires in the present life, using "tree of life" as an idiom for something life-giving and satisfying. It does not mention eternal life, immortality, salvation, or any concept of an afterlife or hell, thus providing no direct or indirect support for the theme of Conditional Immortality.