2 Timothy 2:20-21 — Vessels of gold/silver vs. wood/clay for honorable/dishonorable use

2 Tim 2:20-21 uses the analogy of a great house with vessels of different materials: gold/silver (honorable, for food) and wood/clay (dishonorable, for unclean items). In antiquity clay vessels were disposable; archaeologists find pottery shards everywhere as a dating tool. The point: a Christian can cleanse himself from dishonorable conduct to become a useful vessel for God's purposes — set apart, holy, useful to the master, ready for every good work. This is about behavioral sanctification, not initial forgiveness.