Can Atheist be objectively moral in the case of a possible follower of an infallible?

[Angrboda]

First, the reality of the divine names of God is such that one of them is God is Truthful, trustworthy. The Quran similarly describes the word of his light, the Prophet "One to be obeyed, one to be trusted". In other words, if you see the light of the holy names of God in the light of this soul, and it's pure light, and pure beauty, you can see it is trustworthy and you can witness it is "true life".
This is while Iblis or devils in the unseen are "dark" and "unclean". They can't take on the clothes of honor of God and bestow it upon believers, they can't manifest glorification of God sincerely, they are far removed from God's valley, they can't show inward spirit of exalted honor, they are rather cursed and far removed from God.
Therefore if you ever witness such guides, they aren't deceives, and you can see the trustworthiness manifest in their light spiritually and what they are manifesting to you to imitate you see the praise and beauty to imitate inwardly and spiritually.
So the question of deception is impossible.
Of course you need such a guide if God exists and there is many stages of to traverse, and praiseworthy exalted stations to reach.

Does this all come from the Quran? What 'light' are you referring to?