In justification and adoption, humanity's ___ is changed.

In the context of justification and adoption within Christian theology, the term "position" refers to the standing or status of an individual in relation to God. Justification is the act of God declaring a sinner to be righteous on account of faith in Jesus Christ, effectively changing their legal status before God. Similarly, adoption refers to God taking believers into His family, changing their relational status as well.

When a person is justified, they are no longer seen as guilty or condemned; instead, they are viewed as righteous. This marks a significant shift in their position. As a result of this transformation, believers are granted access to a new identity as children of God, emphasizing their changed status before Him.

The other options, while significant in the context of faith and spirituality, do not accurately capture the profound transformation of standing before God that occurs in justification and adoption. Behavior may change as a result of this transformation, but it is not the essence of what is modified in justification and adoption. Faith and belief are components of the process, but they do not denote the change in status or position that justification and adoption entail.