God is the Ruler "yet".

[sitifan]

3 This is my Father's world:
O let me ne'er forget
That though the wrong seems oft so strong,
God is the Ruler yet.
Source: https://hymnary.org/text/this_is_my_fathers_world_and_to_my

What does the word "yet" mean in the lyrics?

Definition of YET

in addition : besides; even; on top of everything else : no less… See the full definition

www.merriam-webster.com

 

[Rover_KE]

on top of everything else

 

[Tarheel]

If you are looking for one word, I would say "still". That is, He is still the ruler, as he has always been.

 

[jutfrank]

Yes, I think 'still', in its sense similar to 'despite this', would be a good alternative word here.

 

[SoothingDave]

Same idea as "Oh, say does that star-spangled banner yet wave?"