Revelation 9:13

9:13 Then ¹  the sixth angel blew his trumpet, and I heard a single voice coming from the ²  horns on the golden altar that is before God,

[9:13]  ¹ tn Here καί (kai) has been translated as “then” to indicate the implied sequence of events within the vision.

[9:13]  ² tc ‡ Several key mss (Ì⁴⁷ א¹ A 0207 1611 2053 2344 pc lat sy^h co) lack the word τεσσάρων (tessarwn, “four”) before κεράτων (keratwn, “horns”). The word seems to have been added by scribes because a “horned” altar (described in the OT [Exod 30:2, 10]) could have only four “horns” or projections at the corners. NA²⁷ includes the word in brackets, indicating doubts as to its authenticity.