2Chr 29:5 And said to them, Hear me, you Levites, sanctify now yourselves, and sanctify the house of the LORD God of your fathers, and carry forth the filthiness out of the holy place.

REPENT, MAKE YOUR SELF CLEAN, SANCTIFY YOURSELF, RETURN TO AND RESTORE HOLINESS AND REVERENCE TO THE PLACE OF ASSEMBLY, GET THE WORLD OUT OF THE CHURCH. 

HEAR
H8085 שָׁמַע shama` (shaw-mah’) v.
1. to hear intelligently (often with implication of attention, obedience, etc
2. causatively, to tell, etc.)
[a primitive root]
KJV: X attentively, call (gather) together, X carefully, X certainly, consent, consider, be content, declare, X diligently, discern, give ear, (cause to, let, make to) hear(-ken, tell), X indeed, listen, make (a) noise, (be) obedient, obey, perceive, (make a) proclaim(-ation), publish, regard, report, shew (forth), (make a) sound, X surely, tell, understand, whosoever (heareth), witness.

SANCTIFY
H6942 קָדַשׁ qadash (kaw-dash’) v.
1. to be (causatively, make, pronounce or observe as) clean (ceremonially or morally)
[a primitive root]
KJV: appoint, bid, consecrate, dedicate, defile, hallow, (be, keep) holy(-er, place), keep, prepare, proclaim, purify, sanctify(-ied one, self), X wholly.

HOLY [PLACE]
H6944 קוֹדֶשׁ qodesh (ko’-desh) n-m.
1. a sacred place or thing
2. (abstract, rarely) sanctity
[from H6942]
KJV: consecrated (thing), dedicated (thing), hallowed (thing), holiness, (X most) holy (X day, portion, thing), saint, sanctuary.
Root(s): H6942


The application and revelations of verse 5 will be expounded on in later verses. For now consider how to apply this verse to your own heart as well as to proper assemblies of the saints of God. Who is Hezekiah speaking to? Who today would be the object of Hezekiah's commands?