en_tn_condensed/jhn/03/26.md

you have testified, look, he is baptizing,

In this phrase, "look" is a command meaning "pay attention!" Alternate translation: "you have testified, 'Look! He is baptizing,'" or "you have testified. 'Look at that! He is baptizing,'" (See: rc://en/ta/man/translate/figs-explicit)