Tafsir of Ghafir 40:81

ويريكم آياته

And He shows you His Ayat. means, `His proof and evidence, on the horizons and in yourselves.'

فٲي آيات الله تنكرون

Which, then of the Ayat of Allah do you deny! means, you cannot deny any of His signs and proofs, unless you are stubborn and arrogant