I am building a study plan that may take some time to complete. As part of my study plan I intend to take an Old Testament Introduction and New Testament introduction along with a commentary set on the Old Testament and a commentary set on the New Testament. By commentary set I mean something like NICOT or REBC. If you were going to read through the Old or New Testament along with one commentary set, and time was not an issue, which commentary set would you choose for the Old Testament and which one for the New Testament?