How do we know that God purges sin from His people?

The process of God purging sin is intricately depicted in Malachi 3:3, where it states, 'And he shall sit as a refiner and a purifier of silver.' This imagery illustrates the divine work of purification that God performs on His people, making them fit to offer acceptable worship. Just as metals are refined to remove impurities, God refines and purges His elect through the work of the Holy Spirit, ensuring that they are presented 'without spot or blemish' (Ephesians 5:27). As indicated in Isaiah 1:25, God promises to 'purely purge away thy dross.' This purging is not only a demonstration of His holiness but also an assurance of His commitment to sanctify His people, delivering them from sin and making them instruments of righteousness.