'Happened' in the Bible

On the trip, at an overnight campsite, it happened that the Lord confronted him and sought to put him to death.

When the people saw that Moses delayed in coming down from the mountain, they gathered around Aaron and said to him, “Come, make us a god who will go before us because this Moses, the man who brought us up from the land of Egypt—we don’t know what has happened to him!”

They said to me, ‘Make us a god who will go before us because this Moses, the man who brought us up from the land of Egypt—we don’t know what has happened to him!’