This surah declares the oneness and purity of God. It affirms that God is one, eternal and has no peer or equal. God does not beget nor was begotten, and nothing is comparable to Him. The surah was revealed to refute those who associated others with God or attributed children to Him. It emphasizes tawhid (the oneness of God) and rejects shirk (associating partners with God). The Prophet would regularly recite this surah in prayers due to its emphasis on God's qualities.