God is holy. By the Holy Spirit, you can discern what is holy and clean.

“that you may distinguish [badal] between holy and unholy, and between unclean and clean [katharos in the Septuagint]” (Lev 10:10)

“we know that when He is revealed, we shall be like Him, for we shall see Him as He is. And everyone who has this hope in Him purifies himself, just as He is pure.” (1Jn 3:2,3)

“For it is the God who commanded light to shine out of darkness, who has shone in our hearts to give the light of the knowledge of the glory of God in the face of Jesus Christ.” (2Cor 4:6)

“For you were once darkness, but now you are light in the Lord. Walk as children of light” (Eph 5:8)

“You are all sons of light and sons of the day. We are not of the night nor of darkness.” (1Thes 5:5)

“And they shall teach My people the difference between the holy and the unholy, and cause them to discern between the unclean and the clean.” (Ezek 44:23)

“Therefore give to Your servant an understanding heart to judge Your people, that I may discern between good and evil.” (1Kin 3:9)

“Do not be unequally yoked together with unbelievers. For what fellowship has righteousness with lawlessness? And what communion has light with darkness?” (2Cor 6:14)

“But your iniquities have separated [badal] you from your God; and your sins have hidden His face from you, so that He will not hear.” (Isa 59:2)

“But solid food belongs to those who are of full age, that is, those who by reason of use have their senses exercised to discern both good and evil.” (Heb 5:14)

“Who can bring a clean thing out of an unclean? No one!” (Job 14:4)

“To the pure all things are pure, but to those who are defiled and unbelieving nothing is pure” (Tit 1:15)

“as newborn babes, desire the pure milk of the word, that you may grow thereby” (1Pet 2:2)

“Since you have purified your souls in obeying the truth through the Spirit in sincere love of the brethren, love one another fervently with a pure heart” (1Pet 1:22)

“Pure and undefiled religion before God and the Father is this: to visit orphans and widows in their trouble, and to keep oneself unspotted from the world.” (Jm 1:27)

“You are already clean because of the word which I have spoken to you.” (Jn 15:3)

“Now the purpose of the commandment is love from a pure heart, from a good conscience, and from sincere faith” (1Tim 1:5)

“holding the mystery of the faith with a pure conscience.” (1Tim 3:9)

“Blessed are the pure in heart, for they shall see God.” (Matt 5:8)

Reading: Lev 10-12; Jn 20