The Intervarsity Press Ancient Christian Commentary on Scripture has about 27 volumes at close to $30 a pop.
you know, even the best study bible just skims the surface. The ACCS has the perspective of the early church fathers, which tells you what the Church thought in those hundreds of years immediately after Christ.
The criticism of such as the accs is that it has essays that the fathers just thought up. So, you can find contradictions among them, from time to time, depending on how they took things.
Also, before the Church defined various dogmas officially over the centuries, there were some who expressed views that might later be considered heretical – simply because the Church had not completely vetted an issue.
I read the five-volume Jewish Publication Society commentary on the Torah. I was disappointed that it didn’t explain a puzzling aspect of the plagues that God sent down on the Egyptians. There’s more than one plague that was sent down, attacking cattle. I thought all the cattle had been slain, but then there comes another plague against cattle, and another plague. What’s with that? No answer.
You have to jump in someplace and start reading, with an open mind, holding those questions until you get an answer.
You might best look over Dr. Scott Hahn’s website www.salvationhistory.com for direction.