NET
20 And now, because you did not believe my words, which will be fulfilled in their time, you will be silent, unable to speak, until the day these things take place.”
Darby
20 and behold, thou shalt be silent and not able to speak, till the day in which these things shall take place, because thou hast not believed my words, the which shall be fulfilled in their time.
KJV
20 And, behold, thou shalt be dumb, and not able to speak, until the day that these things shall be performed, because thou believest not my words, which shall be fulfilled in their season.