en_tn/num/05/05.md

any sin such as people do to one another

"any sin that people usually commit against one another"

is unfaithful to me

If someone sins against another person, it means that they have also sinned against Yahweh and Yahweh considers that person as unfaithful to him. AT: "they have also wronged me" (See: rc://en/ta/man/translate/figs-explicit)

the price of his guilt

Here the person's "sin" is referred to as his "guilt." AT: "what is considered a suitable amount of money for the wrong that he has done" (See: rc://en/ta/man/translate/figs-metonymy)

add to the price one-fifth more

This means the person must pay an extra one-fifth of the price that he owes.

one-fifth

This is one part out of five equal parts. (See: rc://en/ta/man/translate/translate-fraction)