._--This book ([Greek: Petrou Kerygma]) gave the
substance of a series of discourses spoken by one person in the name of
the apostles. Clement of Alexandria quotes it several times as a genuine
record of Peter's teaching. Heracleon had previously used it (see
Origen, _In Evang. Johann._ t. xiii. 17). It is spoken unfavourably of
by Origen (_De Prin._ Praef. 8). It was probably in the hands of Justin
and Aristides. Hence Zahn gives its date as 90-100 at latest; Dobschutz,
as 100-110; and Harnack, as 110-130. The extant fragments contain
sayings of Jesus, and warnings against Judaism and Polytheism.

They have been edited by Hilgenfeld: _Nov. Test. extra Can._, 1884, iv.
51-65, and by von Dobschutz, _Das Kerygma Petri_, 1893. Salmon (_Dict.
Christ. Biog._ iv. 329-330) thinks that this work is part of a larger
work, _A Preaching of Peter and a Preaching of Paul_, implied in a
statement of Lactantius (_Inst. Div._ iv. 21); but this view is
contested by Zahn, see _Gesch. Kanons_, ii. 820-834, particularly pp.
827-828; Chase, in Hastings' _Bible Dict._ iv. 776.

_Acts of Thomas._--This is one of the earliest and most famous of the
Gnostic Acts. It has been but slightly tampered with by orthodox hands.
These Acts were used by the Encratites (Epiphanius, _Haer._ xlvii. 1),
the Manichaeans (Augustine, _Contra Faust_. xxii. 79), the Apostolici
(Epiphanius lxi. 1) and Priscillianists. The work is divided into
thirteen Acts, to which the Martyrdom of Thomas attaches as the
fourteenth. It was originally written in Syriac, as Burkitt (_Journ. of
Theol. Studies_, i. 278 sqq.) has finally proved, though Macke and
Noldeke had previously advanced grounds for this view. The Greek and
Latin texts were edited by Bonnet in 1883 and again in 1903, ii. 2; the
Greek also by James, _Apoc. Anec._ ii. 28-45, and the Syriac by Wright
(_Apocr. Acts of the Gospels_, 1871, i. 172-333). Photius ascribes their
composition to Leucius Charinus--therefore to the 2nd century, but
Lipsius assigns it to the early decades of the 3rd. (See Lipsius,
_Apokryphen Apostelgeschichten_, i. 225-347; Hennecke, _N.T.
Apokryphen_, 473-480.)

_Teaching of the Twelve Apostles_ (Didache).--This important work was
discovered by Philotheos Bryennios in Constantinople and published in
1883. Since that date it has been frequently edited. The bibliography
can be found in Schaff's and in Harnack's editions. The book divides
itself into three parts. The first (i.-vi.) contains a