Verse 3:[1] And when he had opened the second seal, (Rev. 4:7) I heard the second beast say, Come and see.
The second seal; the second of those seven seals with which the book, mentioned Revelation 5:1, was sealed.
[The second living creature] Namely, the Ox (Mede), or the Calf (Menochius, thus Ribera, Cluverus, Forbes), as it is evident from Revelation 4:7 (Menochius, thus Ribera, Cluverus), aptly shadowing forth (Cluverus) those that were presenting themselves to be slaughtered like calves for the sake of the Gospel (Forbes, similarly Cluverus). For the patience and sacrificing of oxen is most well-known (Cluverus). This living creature, unless I be mistaken, was Matthew, whose are the words in Matthew 24:7, Nation will rise against nation, and kingdom, etc., where by kingdom we show provinces to be understood out of Isaiah 19:2 (Grotius).
The second beast; the beast like a calf, Revelation 4:7. Come and see; inviting John to attend.
[1] Greek: Καὶ ὅτε ἤνοιξε τὴν δευτέραν σφραγῖδα, ἤκουσα τοῦ δευτέρου ζώου λέγοντος, Ἔρχου καὶ βλέπε.