Most Christians are aware that the name Jesus means Joshua because he will save his people from their sins (Mt. 1:21). More properly the Christ, Messiah, or Anointed one than a ‘last’ name. Judas is the Greek of the Hebrew Judah – meaning praise, yes, but more (see https://www.ancient-hebrew.org/names/Judas.htm). I imagine a conductor at a theatre, and God is the puppet-Master (Mt. 26:24; Mk. 14:21; Lk. 22:22; Cf. Lk. 17:1-2; I Cor. 15:3), but that is a subject requiring further explanation elsewhere.
“According to the scriptures,” is what we are after – yes (I Cor. 15:4)? Peter adds his part (Acts 2:14-39). Cain, of Judas’s clan, was a man who acquired a wealthy city (Cain-Enoch cf. Gen. 4:16-17), Esau, of his clan would carry on this kind of city building, while his brother was a real heel-raising deceiver (Gen. 25:19-28), and they would be spoken of later (Rom 9-11). Iscariot means ‘man of Kerioth’, which in turn means city. Thus we have at least a double witness – https://www.abarim-publications.com/Meaning/Kerioth.html
This brings us to the Passover/Lord’s supper, and why the two are treated as a type of synonyms. Many fail to respect the context of the so-called ‘LORD’s Supper’, because they don’t read the bible the way God asks us to read it. Jesus made clear, in no uncertain terms, that he was celebrating the Passover in the well-known passages (Mt. 26:17-30; Mk. 14:12-26; Lk. 22:7-23; I Cor. 5:6-8, 11: 17-34 cf. Ex. 12:1-27). The ‘this’ of “do this” is in the context of the Passover, and here Jesus gives a defence of covenantal continuity.
The Passover was not ‘abrogated’, rather it was ‘fulfilled’ (cf. Mt. 5:17-20). Therefore, did Jesus partake of the feast of unleavened bread, the Passover/LORD’s Supper? – yes, for the last time on earth – “I will keep the Passover at your house with my disciples.” (Mt. 26: 18) “Go and prepare the Passover for us, that we may eat.” (Lk. 22: 8). ‘The Teacher says, “Where is the guest room in which I may eat the Passover with My disciples?”’ (Mk. 14:14) Can you claim to follow only what God commands in worship, and ignore this one?
What about Judas? Again, look to the context. It was necessary that he be there, and drink and eat, for his betrayal would be a covenantal betrayal (Mt. 26:1-16; Mk. 14:11-11; Lk. 22:1-6). “He who dipped his hand with Me in the dish will betray Me” (Mt. 26:23 cf. Mk. 14:20 cf. Ps. 41:9). “Behold, the hand of the betrayer is with Me on the table,” (Lk. 22:21), it was predestined of him (22). He was born to it (Mt. 26:24). “Then Judas, who was betraying Him, answered and said, ‘Rabbi, is it I?’ He said to him, ‘You have said it.’” (25)
The above doesn’t mean it shouldn’t ‘trouble’us. It troubled Jesus (Jn.13:21). Reprobation is ‘stake and potatoes’, fit only for those experienced in handling the word. It troubles me. However, my criteria for biblical exegesis has never been how I feel, or how disturbed I may be within. With Paul, and Calvin, I approach the above topic and now conclude with the former’s words, given to him by the Spirit – “I have great sorrow and continual grief in my heart.” (Rom. 9:2) It is what follows that I still struggle with immensely (3).