Al-An'am 6:115

Watammat kalimatu rabbika sidqanwaAAadlan la mubaddila likalimatihi wahuwa assameeAAualAAaleem

And the word of your Lord has been fulfilled in truth and in justice. None can alter His words, and He is the Hearing, the Knowing.

The Word of your Lord is perfect in truth and justice. None is there to change His words, and He is All-Hearing, All-Knowing.