I am thinking the first “shame” is for the responsive shameful deeds (such as outspoken words of wrath, strife, slander, etc) of those who will hear His rebuke and will respond negatively towards it. It is the negative response (a “disfigured” response so to speak) towards the hearing of His rebuke of them that is shameful .
Revelation 3:18-19 KJV (18) I counsel thee to buy of me gold tried in
the fire, that thou mayest be rich; and white raiment, that thou
mayest be clothed, and that the shame of thy nakedness do not appear;
and anoint thine eyes with eyesalve, that thou mayest see.
The Lord prods the church of the Laodiceans in order to get a response (whether “hot” or “cold”) with His rebuke of them (know not that you are wretched, and miserable, and poor, and blind, and naked). They were “lukewarm” in their response.
They will hear the rebuke and He hopes to get a positive response (be zealous and repent) by putting on righteous acts (white raiment) towards the hearing of His voice (the rebuke) instead of showing wrath towards that rebuke.
The righteous acts towards the hearing of His voice/rebuke covers up their previous lack of righteousness (their nakedness that they were not aware of).
They put on Christ as their faith is tried in the “fire” of His rebuke that they will hear. They manifest their faith by showing forth righteousness towards Him. They hear the rebuke and pass the test of their faith as they overcome the anger towards the hearing of His rebuke and respond with righteousness instead of with words of wrath.
(19) As many as I love, I rebuke and chasten: be zealous therefore,
A negative response (their shame revealed ) will only show forth that they indeed did not have righteousness as His voice exposes what is deep in their hearts. They will respond with wrath towards His rebuke of them and so their “shame” of their nakedness (lack of righteousness) is revealed for all to see.
The other “shame” is a literal visual one as their shame is revealed in their mortal flesh as a disfigurement for all to see. It is a result of their shameful works. They “walk naked” as their negative response is continual. A “walk” is continuous and has a lasting, eventual visual effect upon their mortal body.
Revelation 16:15 KJV (15) Behold, I come as a thief. Blessed is he
that watcheth, and keepeth his garments, lest he walk naked, and they
see his shame.
Whoever sows according to his flesh (shameful acts of wrath, envy, strife, contentions, etc) reaps decay (corruption) of the mortal flesh…..a visual thing that shows up eventually in the mortal bodies of those who “walk naked” as they continually sow after the flesh instead of the Spirit. They reap a visual display of their sins in their mortal bodies.
Galatians 6:6-10 KJV (6) Let him that is taught in the word
communicate unto him that teacheth in all good things. (7) Be not
deceived; God is not mocked: for whatsoever a man soweth, that shall
he also reap.
But those who continuously sow to the Spirit (walking in the Spirit) shall reap of the Spirit life everlasting. The Spirit gives their mortal bodies life and not decay and death.
(8) For he that soweth to his flesh shall of the flesh reap
corruption; but he that soweth to the Spirit shall of the Spirit reap
life everlasting. (9) And let us not be weary in well doing: for in
due season we shall reap, if we faint not. (10) As we have therefore
opportunity, let us do good unto all men, especially unto them who are
of the household of faith.
Case in point…..Daniel who did eat “pulse” (meaning “to sow” or “something sown”….as in sowing after the Spirit) and drank water (the water of life….the Spirit) compared to those who did eat of the king’s meat and drank the wine.
The children that ate the king’s meat let sin rule over them (not partaking of the fruit of the Spirit) and did drink the wine of wrath. They instead eat the food of wickedness, And wine of violence they drink. (Proverbs 4:17). They sow after the flesh and reap decay in the mortal flesh....a visual shame.
Daniel 1:12-16 KJV (12) Prove thy servants, I beseech thee, ten days;
and let them give us pulse to eat, and water to drink. (13) Then let
our countenances be looked upon before thee, and the countenance of
the children that eat of the portion of the king's meat: and as thou
seest, deal with thy servants. (14) So he consented to them in this
matter, and proved them ten days
The view….the appearance…of Daniel (and those servants with him) who sowed after the Spirit (ate “pulse”) and drank in the living Water of the Spirit that taught them appeared fairer and fatter in flesh than the those who ate the portion of the king’s meat.
(15) And at the end of ten days their countenances appeared fairer
and fatter in flesh than all the children which did eat the portion of
the king's meat. (16) Thus Melzar took away the portion of their
meat, and the wine that they should drink; and gave them pulse.