'Happened' in the Bible

And the young man who told him explained, “By chance I happened to be on Mount Gilboa, and there was Saul leaning on his spear, and the chariots and horsemen [of the Philistines] were close behind him.

There happened to be there a worthless and wicked man named Sheba the son of Bichri, a Benjamite. He blew a trumpet [to call Israel to revolt] and said,“We have no portion in DavidAnd no inheritance in the son of Jesse,Every man to his tents, O Israel!”