Eze. 16.49-50:
49Behold, this was the iniquity of thy sister Sodom, pride, fullness of bread, and abundance of idleness was in her and in her daughters, neither did she strengthen the hand of the poor and needy.
50And they were haughty, and committed abomination before me: therefore I took them away as I saw good.
See when I read those two verse I see a continuation of the list of iniquities, because verse 50 starts with And they were haughty, and committed. I don't see them as verse 50 talking about what has already been said in verse 49.
Jude 1:7-8
7Even as Sodom and Gomorrha, and the cities about them in like manner, giving themselves over to fornication, and going after strange flesh, are set forth for an example, suffering the vengeance of eternal fire. 8Likewise also these filthy dreamers defile the flesh, despise dominion, and speak evil of dignities.
We have to take the Bible as a whole, so why wouldn't or couldn't we use different scriptures to show something. Different books of the Bible mention things from other books, right?