Holiness Comes from the Hebrew Root קֹדֶשׁ Qodesh
Our Holy, Set-apart, קֹדֶשׁ Qodesh, Creator is Eternal, יְהוִֹה YHVH, and everything Good.
YHVH has made everything appropriate in it’s time:
“He has made everything beautiful, or appropriate (יָפֶה yapheh) in its time. He has also placed eternity (עוֹלָם o’lam) in the hearts of men, yet they cannot fathom the work God has done from beginning to end.” Ecclesiastes 3:11
As a result, YHVH has given mankind His Eternal Instructions, the תּוֹרָה Torah, Setting-apart, קֹדֶשׁ Qodesh, Good from Bad, just as clearly as Darkness is divided from Light.
YHVH has made the end conspicuous from the beginning:
I distinguish, make conspicuous (נָגַד nagad) the end from the beginning, and ancient times from what is still to come, saying: ‘My purpose will be established, and I will do all I desire.’ Isaiah 46:10; Psalm 33:11; Proverbs 19:21; Isaiah 14:24; Isaiah 40:8; Isaiah 53:10
YHVH’s distinctions have been made known from the beginning, so watch out, those who deceive, confuse, pervert and distort the obvious, you have been forewarned:
“Woe to those who call evil good, and good evil; Who substitute darkness for light and light for darkness; Who substitute bitter for sweet and sweet for bitter!” Isaiah 5:20
Holiness is Separation
Holiness, Kedushah קְדֻשָּׁה, is Separation. Just as YHVH Separated Israel by giving Moses His Torah; Instructions. All people are called to be Holy, to walk in the way of Life, being Set-apart from the world of death, by doing what is Holy, Right and Good:
“Speak to the entire congregation of the Israelites and tell them: ‘Be Holy because I, YHVH your God, am Holy.” Leviticus 19:2
So then, the Torah is Holy, and the Commandment is Holy, Righteous, and Good. Romans 7:12
“But just as He who called you is Holy, so be holy in all you do, for it is written: “Be Holy, because I am Holy.” 1 Peter 1:16
YHVH spells out what is Bad and it is Set-apart for destruction (חֵרֶם Haram), Deuteronomy 7:26.
YHVH has Set-apart Truth from Lies and we are Set-apart by YHVH’s Word of Truth:
Set them apart by the Truth; Your Word is Truth, John 17:17
Holiness Makes a Distinction Between Life and Death:
…and so as to make a distinction between the Holy and the Common, and between the Unclean and the Clean… Leviticus 10:10
Distinguishing Good (טוֹב Tov #2896) from Bad/Evil, (רַע Ra #7451), Genesis 3:5; Hebrews 5:14. Holy/Set-Apart/Sacred, (קֹדֶשׁ Qodesh #6944) from Unholy/Common/Profane, (חֹל Chol #2445). Unclean, (טָמֵא Tame #2931) from Clean, (טָהוֹר Tahor #2889), Ezekiel 44:23. Darkness/Obscurity, (חשֶׁךְ Choshek #2822) from Light/Perception, (אוֹר Oor #216), Sweet, (מָתוֹק Mathoq #4966) from Bitter, (מַר Mar #4751), Isaiah 5:20; 1 John 1:5; James 3:11. Level/Smooth, (מִישׁוֹר Mishor #4334 the Noun, Yashar #3474 the Verb) from Crooked, (עָקֹב Akob #6121), Lies, (Sheqer #8267) from Truth/Faithfulness, (אֶמֶת Emet #571 from Aman), Isaiah 40:4; Isaiah 42:16; Luke 3:5; Psalm 52:3; Jeremiah 9:5, Blessing from Cursing, Deuteronomy 30:19, Life, (Chay #2416) from Death, (Maveth #4194).