'Upon' in the Bible

I went [away] full, but Yahweh brought me back empty-handed! Why call me Naomi {when Yahweh has testified against me} and Shaddai has brought calamity upon me?"

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.