Joseph Henry Thayer

Doctrinal Error in Thayer's Lexicon

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Reprinted with permission from As I See It. AISI is sent free to all who request it by writing to the editor at


Brother Kutilek,

In your most recent edition of AISI, you recommend Thayer’s “A Greek-English Lexicon of the New Testament.” I have used this lexicon extensively since the day my former pastor helped me pick out my copy at a local used book store. At that time, my pastor told me to watch out for Thayer’s doctrine with regard to the Trinity or deity of Christ, or perhaps his potential unitarianism. My pastor said he hadn’t found it, but he had been made aware of the warning and was just passing it on to me. I haven’t found it either. For a while, I have been using the Thayer’s edition that is online at Blue Letter Bible. I found the same warning there. They post this disclaimer online:

Caution: According to Baker’s modern copyright edition, Thayer was apparently not doctrinally sound in all areas, particularly in the area of the trinity, and so the user must be on guard. We would be appreciative of any actual examples of doctrinal error, so they can be marked with “caution” tags.

Brother K., you seem to be a person who is typically aware of this kind of information, so I thought I would ask you if you can shed any light on this. Do you know of any specific unsoundness in Thayer’s lexicon? Do you know of any particular entries where the user might be cautioned? Do you have any biographical information on Thayer (or perhaps on Grimm) that would uphold or refute this warning?

Thank you…

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