That is from what your Lord has revealed to you, [O Muḥammad], of wisdom. And, [O mankind], do not make [as equal] with Allāh another deity, lest you be thrown into Hell, blamed and banished.
This is (part) of Al-Hikmah (wisdom) which your Lord has revealed to you. And set not up with Allah any other god lest you should be thrown into Hell, blameworthy and rejected (from Allah's mercy)(39)
Everything previously mentioned is Revelation and Wisdom
Allah says: 'What We have commanded you to do is part of good manners, and what We have forbidden you are evil qualities. We have revealed this to you, O Muhammad, so that you may command the people likewise.'
(And set not up with Allah any other god lest you should be thrown into Hell, blameworthy) meaning, your own self will blame you, as will Allah and His creation.
مَّدْحُورًا
(rejected) means far removed from everything good. Ibn 'Abbas and Qatadah said: "(It means) cast out." This is an address to the Ummah via the Messenger ﷺ, for he is infallible.