There are four novels in Tim LaHaye's fiction series Babylon Rising (the first co-authored by Greg Dinallo and the others by Dr. Bob Phillips, Ph.D).
Each novel has to do with the hero, Michael Murphy, a college professor, and his struggles (on which he is sent by a mysterious rich man calling himself "Methuselah") to find an artifact that could prove the Bible correct.
Murphy must deal with "The Seven", an evil group "bent on creating a one-world religion, government, and currency", and Talon, the man with a knifelike fingernail on one prosthetic finger who carries out The Seven's orders.
The second book of the series, entitled The Secret on Ararat, again chronicles the adventures of Murphy and Isis and how they search for Noah's Ark in order to prove to the world the truths of the Bible.
The fourth book in Babylon Rising, The Edge of Darkness, is about Michael Murphy locating the Lost Temple of Dagon which contains Aaron's Rod and the Golden Jar of Manna.