The depth of Paul's letter to the Hebrews and Peter's (also to Jews) show that their readership were capable of grasping the many Old Testament allusions they make. It is staggering that Paul describes what he says about Melchizedek as the milk of the word, lamenting that he could not go into more detail about him because of their spiritual immaturity (Heb.5:11,12).
Watu hawa wakiwa ni Wayahudi kulikuwa na maana ya kwamba walikuwa na elimu nzuri ya Agano la kale na njia ya Mungu. Kina cha waraka wa Paulo kwa Waebrania na Petro (kwa Wayahudi vilevile) unaonyesha kwamba wasomaji wake walikuwa na uwezo wa kufahamu misemo iliyosemwa mingi katika Agano la Kale. Inashangaza kwamba Paulo anaelezea anachosema kuhusu Melkizedeki kuwa ni maziwa ya neno, kwa sababu yao kutokukua kiroho (Ebra 5:11,12).