Adopted is Not an Adjective

Russ Moore spoke last week at our church on the topic, "Why We Want to be Foster Children":

In Scripture there is no such thing as an adopted child.  Adopted is a past tense verb, it is not an adjective.  Those who have been brought into the household and family of God are really and truly part of the household of God sharing with their brothers and sisters everything that it means to be in Christ.