We hear so often that the LXX was the text quoted by Jesus, but is this true?
What I would suggest, and what my study has indicated to me is that the reason this appears to be the case is due to translating.
The LXX is a translation from the Hebrew to the Greek. If Matthew was written in Hebrew as many scholars believe, then some, or all of the New Testament would be a translation from the Hebrew to the Greek. Then when you compare the quotes from the Old Testament found in the LXX you are looking at the Greek translation, which could not possibly be identical to the Hebrew, since there is no exact word for word replacement. What you would have is two Greek translations from the Hebrew which would naturally agree one with another, more than they would with the Hebrew.
It is not true that all quotes found in the New Testament agree word for word with the LXX.
The MT agrees far greater with the DSS than does the LXX, and the DSS has been carbon dated to be 300 to 600 years older than any extant LXX.
What I would suggest, and what my study has indicated to me is that the reason this appears to be the case is due to translating.
The LXX is a translation from the Hebrew to the Greek. If Matthew was written in Hebrew as many scholars believe, then some, or all of the New Testament would be a translation from the Hebrew to the Greek. Then when you compare the quotes from the Old Testament found in the LXX you are looking at the Greek translation, which could not possibly be identical to the Hebrew, since there is no exact word for word replacement. What you would have is two Greek translations from the Hebrew which would naturally agree one with another, more than they would with the Hebrew.
It is not true that all quotes found in the New Testament agree word for word with the LXX.
The MT agrees far greater with the DSS than does the LXX, and the DSS has been carbon dated to be 300 to 600 years older than any extant LXX.