For instance, today, the following seems an appropriate verse to quote, Matthew 26:52b:
"...all they that take the sword shall perish with the sword."
Other proverbial phrases derived from the AV include "my brother's keeper," "salt of the earth," "give up the ghost," "scapegoats," "an eye for an eye," "casting your pearls before swine," "scarlet woman," "writing on the wall", "the blind leading the blind" and "a house divided against itself."
But most importantly, the AV served to bring the Gospel to the people of the day in their own language, it was a Bible "understanded of the people":
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.