Murmuring at God's Will

Today in worship we sang "Help My Unbelief." This hymn was written by John Newton, most well-known for "Amazing Grace." Here are the lyrics. The last verse (that I have bolded) particularly struck me today.

I know the Lord is nigh,
And would but cannot pray,
For Satan meets me when I try,
And frights my soul away,
And frights my soul away.

I would but can’t repent,
Though I endeavor oft;
This stony heart can never relent
Till Jesus makes it soft,
Till Jesus makes it soft.

Help my unbelief.
Help my unbelief.
Help my unbelief.
My help must come from Thee.

I would but cannot love,
Though wooed by love divine;
No arguments have power to move
A soul as base as mine.
A soul so base as mine.

I would but cannot rest,
In God’s most holy will;
I know what He appoints is best,
And murmur at it still.
I murmur at it still.

Help my unbelief.
Help my unbelief.
Help my unbelief.
My help must come from Thee.