He's in the old one too.
You beat me to it!
Search the scriptures (OT); for in them ye think ye have eternal life: and they are they which testify of me. (John 5:39)
For had ye believed Moses, ye would have believed me: for he wrote of me. But if ye believe not his writings, how shall ye believe my words? (John 5:46,47)
Jesus says this to the unbelieving Jews of his day.
You and I know that. But even Born Again Believers, if they are fairly recently saved, will have tough going in the OT. As Paul said, They are not capable of digesting steak and lobster tail; they can only handle “the milk of the word.” such as The Gospel of John.
Someone who is merely searching, but as yet is not Born Again, will have an even tougher time with the OT. They need to start by reading John’s Gospel, as well. IMHO, of course. And the last thing EITHER of them need is to read as bunch of unbelieving psychobabble in a leftist magazine by someone who wouldn’t know God if He walked up and shook hands, wearing a nametag!