This continues the prophecy about the people of Moab. God describes events that will happen in the future as if it is happening in the present. (See: [Isaiah 15:1](./01.md))
Here "I" refers to Yahweh. Also, "upon Dimon" refers to the people. AT: "I will cause even more trouble on the people of Dimon." (See: [[rc://en/ta/man/translate/figs-metonymy]])