How does the Bible describe the appearance of God?

Revelation 4 describes God's appearance with imagery of precious stones—jasper, sardine, and emerald. Jasper symbolizes purity and brilliance, while sardine (or sardius) evokes the idea of blood and justice (Exodus 28:17). The emerald represents hope and the glory of God's covenant. This vivid imagery conveys the majesty and holiness of God, showing that He is not only sovereign but also perfectly holy and just. This portrayal deepens believers' understanding of God's character, instilling awe and reverence in their worship.