How do we know angels are important for Christians?

Angels are significant for Christians as they serve multiple functions that directly impact the life of a believer. Their primary role includes guarding, aiding, and guiding the faithful. Scriptures like Psalm 91 affirm that angels are given charge over believers to watch over them in all their ways (Psalm 91:11). Additionally, angels rejoice at the conversion of sinners, illustrating their active participation in the salvation narrative (Luke 15:10). This heavenly ministry signifies God's love and commitment to protect and support His children in their walk of faith.