Source : Webster's Revised Unabridged Dictionary (1913)

Biblical \Bib"li*cal\ (b[i^]b"l[i^]*kal), a.
   Pertaining to, or derived from, the Bible; as, biblical
   learning; biblical authority.

Source : WordNet®

biblical
     adj 1: of or pertaining to or contained in or in accordance with
            the Bible; "biblical names"; "biblical Hebrew" [syn: {scriptural}]
     2: in keeping with the nature of the Bible or its times or
        people; "biblical styles in writing"; "a beard of biblical
        proportions"; "biblical costumes"