Hebrews 12:21

21. And… Moses said Drop out that, which is not in the Greek, and enclose so… sight in a parenthesis.

I exceedingly fear… quake These words are not in the Exodus narrative. In Deuteronomy 9:19, Septuagint, the Greek for I exceedingly feared occurs. They there describe Moses’s fear of the anger of Jehovah at the violation of the decalogue by the people. Lunemann says, that our author transferred these words by a slip of memory. Erasmus, Beza, Stuart, and others conjecture that he writes them from a traditional account; Calovius attributes them to his original inspiration; Rosenmuller, Stier, and Delitzsch hold that he does not mean that Moses used these very words, except mentally, but that the words, as in Deuteronomy 9:19, are used to express Moses’s emotions at the Sinaitic scene. Stuart says: “It is implied, however, [that Moses trembled,] where it is said that ‘all the people in the camp trembled,’ and Moses was with them.”