Codex Climaci Rescriptus is a collective palimpsest manuscript consisting of several individual manuscripts underneath, Christian Palestinian Aramaic texts of the Old and New Testament as well as two apocryphal texts, including the Dormition of the Mother of God, and is known as Uncial 0250 (in the Gregory-Aland numbering) with a Greek uncial text of the New Testament and overwritten by Syriac treatises of Johannes Climacus (hence name of the codex): the scala paradisi and the liber ad pastorem.

The Christian Palestinian Aramaic sections contain biblical manuscripts of two Gospels Matthew and Mark, as well as of the Acts of the Apostles and the Epistles, remnant parts of the Old Jerusalem lectionary (CCR 3)[4][5] with Old and New Testament pericopes, and sections of the early Christian apocryphal Dormition of the Mother of God (Liber Requiei Mariae) as well as one or two unknown homilies on 112 folios (23 by 18.5 cm), written in two columns per page, 18 to 23 lines per page in an adapted Syriac Estrangela square script.

The Greek section contains the text of the four Gospels, with numerous lacunae, on 34 parchment folios (23 by 15.5 cm).

[13] Many of the readings for the Christian Palestinian Aramaic part could be improved for the reeditions by Christa Müller-Kessler and Michael Sokoloff.

[15] The missing eighteenth quire could recently be added from the New Finds (1975) in Saint Catherine's Monastery.

[19] The Greek text of the codex 0250 is mixed with a predominant element of the Byzantine text-type.

[10] Eight leaves (Sinai, Syriac NF 38) surfaced among the New Finds in Saint Catherine's Monastery from 1975.

[24] In 2010, Steve Green, president of Hobby Lobby, bought the codex directly from Sotheby's after their auction ended unsuccessfully.

[2] In 2021 parts of the previously lost star catalogue of Hipparchus of Nicaea were discovered in the manuscript.