In Man there is a Lesson

Allah tells us that He is controlling the affairs of His servants. He is the One Who created them out of nothing, then He will cause them to die. But there are some of them that He allows to grow old, which is a physical weakness, as Allah says:

اللَّهُ الَّذِى خَلَقَكُمْ مِّن ضَعْفٍ ثُمَّ جَعَلَ مِن بَعْدِ ضَعْفٍ قُوَّةٍ

Commentary

Mentioned previously were various states of water, vegetation, cattle and honey bee through which Allah Ta’ ala had reminded human beings of His perfect power of creation and of His blessings for the created. Now, through the words of the present verse, they have been invited to ponder over the very state they are in. Human beings were nothing. Allah Ta’ ala blessed them with existence. Then, by sending death when He willed, He terminated that blessing. As for some others, they are, much before their death, carried to such a stage of extreme old age that their senses do not work, they lose the strength of their hands and feet. They understand nothing, nor can they remember what they do. This change in their world-view and self-view proves that knowledge and power reside in the exclusive domain of the One who is the Creator and Master.