Repeating the word "holy" three times indicates God is completely holy. Alternate translation: "Yahweh of hosts is holy beyond all else" or "Yahweh of hosts is completely holy"
This speaks of the earth as if it were a container and glory were the contents in the container. Alternate translation: "Everything on the earth is evidence of God's glory" (See: [[rc://en/ta/man/translate/figs-metaphor]])