en_tn_condensed/deu/08/02.md

You will call to mind

This is an idiom. Alternate translation: "You must remember" (See: rc://en/ta/man/jit/figs-idiom)

forty years

"40 years" (See: rc://en/ta/man/jit/translate-numbers)

he might humble you

"he might show you how weak and sinful you are"

to know

"to reveal" or "to show"

what was in your heart

The heart is a symbol of a person's character. Alternate translation: "what kind of people you are" or "how you would behave" (See: rc://en/ta/man/jit/figs-metonymy)