Internationally known as BDAG, this lexicon is both exhaustive and irreplaceable.  Walter Bauer's lexicon is one of the great monuments of biblical and related scholarship, perfect for English speaking students working in the Greek text.  It incorporates new research, new information, and analyses while rendering translations into contemporary English.  This is the standard lexicon of New Testament Greek, there is no equal.  This is a "must have" volume.

This volume, based on the United Bible Society 3rd edition Greek text, is the first entirely new analytical lexicon since the publication of Bagster's Analytical Greek Lexicon in 1852. In addition to the lexicon proper, which includes preferred readings as well as variants, this textbook contains an all-new set of paradigms that explain why each Greek form is the way it is. Includes Goodrick/Kohlenberger numbering system.  This is a "must have" volume  as it declines all NTGreek forms and cites the lexical form to assist in looking up a word, if needed, in BAGD.