That is because Allah is the Truth, and that which they call (22:62)

﴿ذَٰلِكَ بِأَنَّ اللَّهَ هُوَ الْحَقُّ وَأَنَّ مَا يَدْعُونَ مِن دُونِهِ هُوَ الْبَاطِلُ وَأَنَّ اللَّهَ هُوَ الْعَلِيُّ الْكَبِيرُ﴾
[ الحج: 62]

22:62 That is because Allah is the Truth, and that which they call upon other than Him is falsehood, and because Allah is the Most High, the Grand.

The aforementioned, i.
e.
entering the night into the day and the day into the night, is because Allah is truly existent, and so His religion is the truth, His promise is also true and His helping the believers is also true.
The idols that the idolaters worship instead of Allah are false and have no basis.
And Allah is supreme over His creation in being, in power and in subjugation; the Grand to Whom belongs all majesty, grandeur and exaltedness.

That is because Allah He is the Truth (the only True God of all that exists, Who has no partners or rivals with Him), and what they (the polytheists) invoke besides Him, it is Batil (falsehood) And verily, Allah He is the Most High, the Most Great.

phonetic Transliteration

Thalika bianna Allaha huwa alhaqqu waanna ma yadAAoona min doonihi huwa albatilu waanna Allaha huwa alAAaliyyu alkabeeru

Abdullah Yusuf Ali - Translation

That is because Allah - He is the Reality; and those besides Him whom they invoke,- they are but vain Falsehood: verily Allah is He, Most High, Most Great.

Safi-ur-Rahman al-Mubarakpuri

That is because Allah -- He is the Truth, and what they invoke besides Him, it is false. And verily, Allah -- He is the Most High, the Most Great.

Page 339 English transliteration