Commentaries:
Robertson's Word Pictures (NT)
Thou shalt be silent (esh siwpwn). Volitive future periphrastic.
Not able to speak (mh dunamenov lalhsai). Negative repetition of the same statement. His dumbness will continue "until" (axri hv hmerav) the events come to pass "because" (anq wn). The words were to become reality in due season (kairon, not xronov, time).
Other Robertson's Word Pictures (NT) entries containing Luke 1:20:
2 Thessalonians 2:10
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