What does the Bible say about righteousness in Christ?

The concept of righteousness in Christ is foundational to Reformed theology, emphasizing that believers are justified not by their own merit, but solely through faith in Jesus Christ. As depicted in Bunyan's writings, he experienced a profound realization that his righteousness was secure in heaven, represented by Christ seated at the Father's right hand. This declaration conveys that regardless of one's state or actions, the believer's standing before God remains unchanged, based on Christ's completed work.