'Illumination' in the Bible

If anyone is willing to do His will, he will know whether the teaching is of God or whether I speak on My own accord and by My own authority.

so that in everything you were [exceedingly] enriched in Him, in all speech [empowered by the spiritual gifts] and in all knowledge [with insight into the faith].

But to each one is given the manifestation of the Spirit [the spiritual illumination and the enabling of the Holy Spirit] for the common good.

For God, who said, “Let light shine out of darkness,” is the One who has shone in our hearts to give us the Light of the knowledge of the glory and majesty of God [clearly revealed] in the face of Christ.

O Timothy, guard and keep safe the deposit [of godly truth] entrusted to you, turn away from worldly and godless chatter [with its profane, empty words], and the contradictions of what is falsely called “knowledge”—