Bible Encyclopedias
Letter

Cyclopedia of Biblical, Theological and Ecclesiastical Literature

stands in only two passages of the Bible in its narrow sense of an alphabetical character (γράμμα , in the plural, Luke 23:38; and prob. Galatians 6:11, πηλίκοις γράμμασι; A. V. "how large a letter," rather in what a bold hand); elsewhere it is used (for סֵפֶר, a book; γραμμα, either sing. or plur.; but more definitely for the later Heb. אַגֶּרֶת [Chald. אגְּרָא, נַשְׁתְּוָן : [Chald. id. also פַּתְגָּם; ἐπιστολή ) in the sense of an epistle (q.v.). (See ALPHABET); (See WRITING).

Bibliography Information
McClintock, John. Strong, James. Entry for 'Letter'. Cyclopedia of Biblical, Theological and Ecclesiastical Literature. https://www.studylight.org/​encyclopedias/​eng/​tce/​l/letter.html. Harper & Brothers. New York. 1870.