Luke 1:20

And now you will be silent and unable to speak until the day this comes to pass, because you did not believe my words, which will be fulfilled at their proper time.”
BSB · Berean Standard Bible
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.
KJV · King James Version
Behold, you will be silent and not able to speak until the day that these things will happen, because you didn’t believe my words, which will be fulfilled in their proper time.”

Note “Behold”, from “ἰδοὺ”, means look at, take notice, observe, see, or gaze at. It is often used as an interjection.

WEB · World English Bible
And behold, thou shalt be silent and not able to speak, until the day that these things shall come to pass, because thou believedst not my words, which shall be fulfilled in their season.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

thou shalt
Luke 1:22, 62, 63; Exodus 4:11; Ezekiel 3:26; Ezekiel 24:27
because
Luke 1:45; Genesis 18:10–15; Numbers 20:12; 2 Kings 7:2, 19; Isaiah 7:9; Mark 9:19; Mark 16:14; Revelation 3:19
which
Romans 3:3; 2 Timothy 2:13; Titus 1:2; Hebrews 6:18