With regards to the sub point, let me narrate my views .
"A tree is known by its fruit.." , This was the verses from Jesus Christ once he met Judas in the first time. Judas, was trying to provoke/tempt our Lord Jesus Christ into worldly matters, in order to form a so called regime by overthrowing ,Romans/Herods/Chief Preists.( 3 powers in that area). Once, Judas failed to do that , he ran to the chief priests and threw the 30 coins and screamed them not to kill his master that also end up in vain. Thus at last opt for the suicide, a deep dark way.
What we could understand from this is the thinking within Judas was
satanic. Even Devil(satan) offered Jesus Christ kingdoms in earth in
the temptation after 40 days fasting. In other words , satan used the
same old tactics through Judas aswell to tempt Jesus Christ from Holy
Cross (a salvation plan to mankind set up by God the father to give the fruit of life). This attempt of temptation to Jesus Christ continued even while he was on the cross by saying "If you are son of God, come down from Cross".
Now let us look into the question of partake of Holy communion.
Yes , Judas had taken the holy communion. Pls refer notes from Mathew
26 -21-23. But the result generated as per the Gospel by taking Holy
communion was as this "He went in to the darkness"
When evening had come, He sat down with the twelve. 21 Now as they were eating, He said, "Assuredly, I say to you, one of you will betray Me."
22 And they were exceedingly sorrowful, and each of them began to say to Him, "Lord, is it I?"
23 He answered and said, "He who dipped his hand with Me in the dish
will betray Me. 24 The Son of Man indeed goes just as it is written of
Him, but woe to that man by whom the Son of Man is betrayed! It would
have been good for that man if he had not been born
Now, let us think about our participation of Holy communion., We all
need to deviate from the path of Judas. We should confess in full before taking Holy communion. If a person with hatred in the mind and if he/she take the holy communion , the end result would be multiplication of Hat redness. That is instead of heavenly peace, he/she immersed into deep darkness.
Repent for the sins and confess in full, then Holy Spirit shall lead us in to the Light...in to the True light. Read Holy Bible twice a day or minimum once.
May God shower grace to all.