Overall meaning : The Almighty says: Do not say or do anything based on sheer conjecture and without sure knowledge and definite proof, and thus pursue what you have no knowledge of, for man will be questioned on Judgement day about whatever he has used his hearing, his sight and his heart for.
Allah follows this with an order prohibiting conceit and arrogance: Do not walk on earth with an air of self-conceit; for you will certainly never split the earth apart no matter how hard you stamp your foot, nor will you ever rival the mountains in height as a result of your arrogance.
He concludes these commandments and prohibitions, saying: The evil of all these is detestable to your Lord; He does not approve of them, and He does not like His servants to engage in them. The rulings contained in the previous verses are part of the wisdom Allah has revealed to you, Muhammad. Then, warning man against associating any partners with Him, He says: Do not worship anyone or anything besides Allah, or you will be cast into Hell, blamed by yourself and mankind, and excluded from all good and from Allah’s grace.