What does the Bible say about angels and salvation?

In 1 Peter 1:12, it is revealed that angels, particularly the elect angels, long to comprehend the depth of salvation that humanity experiences through Jesus Christ. While angels are created beings who serve God, they do not have the capability to taste the mercy that is bestowed upon fallen humanity. Only humans can experience the fullness of redemption, having been raised to a living hope through the resurrection of Christ. This concept emphasizes that the miracle of salvation is exclusive to those whom God has chosen, showcasing His abundant mercy and grace—something that even the angels desire to understand but cannot partake in due to their status as created and unfallen beings.