Charles H. Spurgeon on Psalms 103:13

Like as a father pitieth his children, so the Lord pitieth them that fear him. To those who truly reverence his holy name, the Lord is a father and acts as such. These he pities, for in the very best of men the Lord sees much to pity, and when they are at their best state they still need his compassion. This should check every propensity to pride, though at the same time it should yield us the richest comfort. Fathers feel for their children, especially when they are in pain, they would like to suffer in their stead, their sighs and groans cut them to the quick: thus sensitive towards us is our heavenly Father. We do not adore a god of stone, but the living God, who is tenderness itself. He is at this moment compassionating us, for the word is in the present tense; his pity never fails to flow, and we never cease to need it.