"Sanctifying work of the Spirit" sounds so formal and religious. Some translations put, "his Spirit has made you holy," but even that wording really doesn't capture the essence of the meaning for me. What I believe Peter is trying to tell us is that our souls were like an old stained rag we used to clean up messes in the garage. When the Spirit comes into our lives, he takes this stained rag, and he cleans it, makes it new, and gives it incredible value. Instead of being the rag for messes in the garage, it is now a beautiful, clean, white tablecloth normally used for special occasions, but to be shared in all its glory in daily life. The Holy Spirit of God takes our broken, stained, and battered souls and makes them clean, new, and valuable — not just for us, but for God. This concept is crucial, as evidenced by it being repeated several times in the Bible (Romans 15:16; 1 Corinthians 6:11; 1 Thessalonians 5:23; 2 Thessalonians 2:13; Hebrews 10:29; 1 Peter 1:2).