In reading through these letters, epistles, and treatises, he noted that He observed several things.
2. Concern for false teaching
3. Glory in the Cross
4. Joy in persecution
5. The priority of unity, love, and holiness in the church
In his conclusion he notes some troubling items: "their views on the sacraments, some occasional hints of asceticism, extremely allegorical interpretations of the Old Testament (especially in The Epistle of Barnabas). So, I think there are good reasons why these documents were not included in the New Testament canon".