'Happened' in the Bible

And it happened in the days [when] {the judges ruled}, there was a famine in the land, and a man from Bethlehem [of] Judah went {to reside} in the countryside of Moab--he and his wife and his two sons.

So she went and came and gleaned in the field behind the reapers. And she happened [by] chance [upon] the tract of field {belonging to} Boaz, who [was] from the clan of Elimelech.

And it happened in the middle of the night the man was startled and he reached out and behold, a woman [was] lying at his feet.