Habakkuk begins to describe his vision of Yahweh coming to judge his enemies and to save his people. The vision continues through Habakkuk 3:15. It is full of metaphorical language and uses different kinds of parallelism. (See: [[rc://en/ta/man/jit/figs-metaphor]] and [[rc://en/ta/man/jit/figs-parallelism]])
Possible meanings are 1) concealed, hid to keep people from seeing, or 2) clothed gloriously, as beautiful clothes add glory to the person who wears them.
Here the word "praise" is a metonym for God's qualities that cause people to praise him. Alternate translation: "the earth was full of his glory" (See: [[rc://en/ta/man/jit/figs-metonymy]])