Two Shorties

[starmack]

Two shorties to wrap up Phoenix quiz

3 letters. In the end could his first person interest have saved the third person in such a fiery situation?
E?O. Is it Ego and why

4 letters. In other words, when concentration was weakened, did it leave instrument exposed?
L?T? Is it lute

[scorpiojo]

(Di) lute (d)

[JJ109]

3 Something to do with Abednego ?

[Lie-in King]

All I can see is the first person is at the end of the third person -

(Shadrach, Meshach and Abedn)Ego

https://en.wikipedia.org/wiki/Shadrach,_Meshach,_and_Abednego

[starmack]

Appreciate both answers. Thanks. Going to go with Ego unless I have a brainstorm during night.