Judas hightailed it out of there before the Institution of the Eucharist. At Christ's command.
According to the Bible, there are sins that cry out to Heaven for vengeance: Wilful murder - the blood of Abel, [Gen. 4:10],the sin of the Sodomites, [Gen. 18:20; 19:13]
the cry of the people oppressed in Egypt, [Ex. 3:7-10]
the cry of the foreigner, the widow and the orphan, [Ex. 20:20-22] and injustice to the wage earner. [Deut. 24:14-5; Jas. 5:4].
Christ said that it would be better that those who lead children astray be thrown into the river with a millstone around their neck. And that it would have been better that Judas never been born (although He did not say the same thing about Peter, indicating a significant differnence in their sins) and Ananias and Sapphria were struck dead for their sin.
Scripturallly, God views some sins as more severe, even to label some as unforgiveable. "Whoever blasphemes against the Holy Spirit never has forgivness, but is guilty of an eternal sin.' [Mk. 3:29; Mt. 12:32; Lk. 12:10]
Hmm? Luke 22: 16-21 says Judas was still there.