Pure Light
To the pure, all things are pure, but to those who are corrupted and do not believe, nothing is pure. In fact, both their minds and consciences are corrupted. They profess that they know God; but in works they deny him, being abominable, and disobedient, and unto every good work reprobate.
Titus 1:15-16
The pure light of the Gospel is of the same nature as the Kingdom of which the Gospel preaches. It is founded on righteousness and justice, and its ways are holiness and faithfulness.
For the light of the Gospel shines as a searchlight in the darkness, finding the hidden things, discovering the secret things in darkness. As the prophet Jeremiah said,
Call to me and I will answer you and tell you great and unsearchable things you do not know.
Jeremiah 33:3