18. Allah testifies that He alone is worthy of worship based on the legislative and universal signs indicating His divinity. The angels and people of knowledge also testify to this, by declaring and calling to His Oneness. They testified to the greatest thing anyone can testify to; the absolute right of Allah to be worshipped, and the perfect justice in His creation and sacred law. This is the greatest thing that anyone can testify to. There is no god but Him, the Mighty who can never be overpowered and the one who is Wise in His creation, planning and legislation.