Charles H. Spurgeon on Psalms 136:4

To him who alone doeth great wonders. Does he "alone" do great wonders? That means, he does so by himself, unaided, needing nothing from others, asking no help from his creatures. As the Nile from Nubia to the Mediterranean rolls on 1,300 miles in solitary grandeur, receiving not one tributary, but itself alone dispensing fertility and fatness wherever it comes; so our God "alone" does wonders. (See De 32:12 Ps 72:18, etc.) No prompter, no helper; spontaneously he goes forth to work, and all he works is worthy of God. Then we have no need of any other; we are independent of all others; all our springs are in him. —Andrew A. Bonar.