Killed by Forgor 💀, God of Oblivion

Even in IRL religion, names have a lot of power. In the Bible, God mentions his own name many times-

Exodus 3

13 But Moses said to God, “If I come to the Israelites and say to them, ‘The God of your ancestors has sent me to you,’ and they ask me, ‘What is his name?’ what shall I say to them?” 14 God said to Moses, “I am who I am.”[b] He said further, “Thus you shall say to the Israelites, ‘I am has sent me to you.’ ” 15 God also said to Moses, “Thus you shall say to the Israelites, ‘The Lord, the God of your ancestors, the God of Abraham, the God of Isaac, and the God of Jacob, has sent me to you’:

"This is my name forever, and this my title for all generations."

Here God is explaining the meaning of His name to Moses and tells Moses His name- YHWH (rendered in most translations as "The LORD" due to ancient taboos around the Name) and Jewish and Christian lore state that pronouncing this name can grant great power. Jewish folklore states that Moses parted the Red Sea by saying an extended version of God's name, and even today most Christians don't even know that God has a name other than "God" because of taboos around saying it.

You can make a danger fraught side quest to uncover the names you must not know.

"... overhead, without any fuss, the stars were going out."