جزو «بیست و دو» درس آموزشی از کتاب مقدّس «دَرسِ شُمارهٔ هِفدَهُم» | Page 5
So the disciples were given the power to work miracles,
as a sign that their message was from God. We read
how, on the day of Pentecost (which we now call
Whitsun), they preached to the Jews in languages that
they had never learnt, and could not have spoken but for
the power of God. This was called, "Speaking in
tongues".