This is your best counter-example!?
"Malachi 2,10-16 is probably best known for the words "'I hate divorce'" says the LORD, the GOd of Israel"
which appear in many modern translations of the Bible, but do not appear (as we shall see) in the Hebrew manuscripts nor in any of the ancient viersions. This however is only one of the problems associated with this text. Indeed, scholars have long regarded Malachi 2,10-16 as the most difficult passage in the book of Malachi...The various interpretations can almost all be divided into two groups: those which read the passage as a figurative attack on religious syncretism and apostasy... and those which read the passase as a literal attack on divorce and marriage to foreign women."
From Shields, M. A. (1999). Syncretism and divorce in Malachi 2, 10-16.
Zeitschrift für die Alttestamentliche Wissenschaft 111.1, p. 68
There are other circumstances wherein divorce is prohibited for life, would you like that I offer more quotes from the OT?
Sure, let's go through them. It is well known that divorce was a common part of Jewish, Roman, and Greek life. Now, this doesn't mean that nowhere in any text of the ancient world is there a suggestion that divorce shouldn't exist. It DOES mean that prohibition of divorce is rare enough to be very significant. And it certainly means that Paul and Q are both using the same source, and as they are independent, this source is Jesus.
Also, Matthew's Q made an exception, divorce was granted if a woman committed adultery.
And if you knew as much about Q as you claim, you would know that this is widely regarded as Matthew's addition, to soften the absolute claim of Jesus which was too contentious for Matthew's audience.
What Paul attributes to the Lord is different than what Q assigns to a Jesus.
No, it isn't. Different wording of the exact same command just means Paul didn't use Q. They both cite the same teaching.
and it was ancient scriptures that Paul was drawing from when he referred to the Lord.
Just when I thought you couldn't get more ridiculous.
Pity he didn't refer to a Jesus as in Q.
Pity you can't seem to realize that Paul calls Jesus lord all the time.