In my 53 Christian years, I have never myself read through from Gen- Rev. without some of the NT too. Let alone
told a NEW Christian to do that!!

I myself have always done...and I have always taught young Christian to do...is get established in the NT first..then when you have done that..then read a chap of Gen and a chapter of the NT together...daily.
Can we really see a poor new Christian wading through the book of Numbers , Ecclesiastes, Lamentations...etc etc.. with no spiritual building up for all those months!! If my mentor had told me to do that I would have slit my wrists by the book of Ecclesiastes...if I even got that far.