"Paul had only the Old Testament when he went to Thessalonica, "and three sabbath days reasoned with them out of the Scriptures, opening and alleging, that Christ must needs have suffered, and risen again from the dead." Acts 17:2, 3.
Timothy had nothing in his childhood and youth but the Old Testament writings, and the apostle wrote to him: "Continue thou in the things which thou hast learned and hast been assured of, knowing of whom thou hast learned them; and that from a child thou hast known the Holy Scriptures, which are able to make thee wise unto salvation through faith which is in Christ Jesus."
2 Tim. 3:14, 15.
Then go to the Old Testament with the expectation of finding Christ and His righteousness there, and you will be made wiser unto salvation.
---Do not discriminate between Moses and Paul, between David and Peter, between Jeremiah and James, between Isaiah and John."
E.J. Waggoner