[@Capt0blivious] Your character will still be able to invest Might into swords as usual, but the swords they craft for free will be as potent as those that have Miracle or Might investment by other gods, and the swords Telum Dei spends Might on will be more potent than swords crafted by other gods for the same amount of Might.

Generally we go by feel more than by numbers, unless things are really up in the air. 'Divine weapon' isn't really a game mechanic or anything, it's just anything that a god spent time and effort on, and so is presumably extremely dangerous.