The Testaments of the Twelve Patriarchs is a constituent of the apocryphal scriptures connected with the Bible. It is believed to be a pseudepigraphical work of the dying commands of the twelve sons of Jacob. It is part of the Oskan Armenian Orthodox Bible of 1666. Fragments of similar writings were found at Qumran, but opinions are divided as to whether these are the same texts. It is generally considered apocalyptic literature.

Apocrypha are biblical or related writings not forming part of the accepted canon of Scripture. While some might be of doubtful authorship or authenticity, in Christianity, the word apocryphal (ἀπόκρυφος) was first applied to writings which were to be read privately rather than in the public context of church services. Apocrypha were edifying Christian works that were not considered canonical scripture. It was not until well after the Protestant Reformation that the word apocrypha was used by some ecclesiastics to mean "false," "spurious," "bad," or "heretical."