17 If they dedicate a field during the Year of Jubilee, the value that has been set remains.

Read Leviticus 27:17 Using Other Translations

If he sanctify his field from the year of jubile, according to thy estimation it shall stand.
If he dedicates his field from the year of jubilee, the valuation shall stand,
If the field is dedicated to the LORD in the Year of Jubilee, then the entire assessment will apply.