A host is an army. Here "the host of the heaven" refers to the many powerful spirits in the heavens. It can be stated clearly that they are evil. AT: "the powerful beings" or "the evil spiritual beings" (See: [[rc://en/ta/man/translate/figs-explicit]])
Here "pit" refers to a dark room or hole in a prison. This can be stated in active form. AT: "Yahweh will gather them together as his prisoners and lock them in the dungeon of a prison" (See: [[rc://en/ta/man/translate/figs-activepassive]])
The sun and the moon are described as a person who is ashamed of being in front of someone with greater power. In the presence of Yahweh, the light of the moon and sun will seem less bright. (See: [[rc://en/ta/man/translate/figs-personification]])