A believer can know their spirit is of God by experiencing faith, wisdom, and love that aligns with the character of Christ.
The assurance that one's spirit is of God comes from the internal witness of the Holy Spirit, who imparts gifts such as wisdom, understanding, and a spirit of prayer (Romans 8:26). Believers embody characteristics that reflect God’s nature, including a tender heart, genuine love for others, and a contrite spirit. The New Testament emphasizes that wherever the Spirit of God dwells, there is life and light. This is evident in the believer’s increasing sensitivity to sin, a desire for holiness, and a longing for communion with God. Thus, to ascertain whether one's spirit aligns with God's, one must assess how it corresponds with the truth revealed in Scripture.
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