So I have been thinking about godmodding a lot. 

People say that godmodding includes having a character that can not die. However, a writer will not let their character die unless they want them to. So technically doesn't that make all character immortal at some point?

[b]Here is a specific situation I want to ask about though. [/b]

One of my main characters is not an OC. It is Lilith from mythology. I researched her for months and put a lot of lore together. She was Adam's real first wife and he tried to force her to be submissive. She left him and eventually met Lucifer, married him, became a demon, and made the succubi. Some texts say that Lilith can only be killed by God, Lucifer or the archangels since she is immortal because she existed before the Original Sin. Also, being almost as strong as Lucifer, not many people can injure her. 

People have harassed me and kicked me from things because I am "godmodding." However, considering Lilith is not an OC, I do not want to give her fake lore. 

In addition to this, I never let Lilith get into fights. Since characters live forever if the writer wants them to, does "immortality" actually count in terms of godmodding? This is why I think godmodding should be based on what happens during fights, or someone who is too OP for their verse/lore. Lilith never fights, so can she really godmod? She is not too OP for her lore either. 

Also, if for some strange reason her body is able to be destroyed, I decided that it would take 1000+ years for her to "revive" since people complained so much. However, she will never actually get injured by others or die since I do not do fight RPs with her. 

Is this godmodding or not?