song in my head for a sunday morning

I've had this song running through my head for the last couple days. It means a lot to me. It was my grandmother's favorite hymn, and I think the last time I heard it at a church service was at her funeral. It's a song my mom plays on the piano.

I am not skilled to understand
What God hath willed, what God hath planned;
I only know at His right hand
Stands One who is my Savior.

I take Him at His word indeed:
"Christ died for sinners"--this I read;
For in my heart I find a need
Of Him to be my Savior!

That He should leave His place on high
And come for sinful man to die,
You count it strange? So once did I
Before I knew my Savior!

And, oh, that He fulfilled may see
The travail of His soul in me,
And with His work contented be,
As I with my dear Savior!

Yes, living, dying, let me bring
My strength, my solace from this spring-
That He who lives to be my King
Once died to be my Savior!