It is based on Proverbs 4:18, which in their New World Translation of the Bible reads, "But the path of the righteous ones is like the bright light that is getting lighter and lighter until the day is firmly established."
Lolushintjo luvumelana nesimiso seliBhayibheli lesivetwe kuTaga 4:18: "Kodvwa indlela yalabalungile ifanana nekukhanya kwentsatsakusa, lokuya ngekuya kuze kube ngusemini."