'Supposing' in the Bible

And there came thither certain Jews from Antioch and Iconium, who persuaded the people, and, having stoned Paul, drew him out of the city, supposing he had been dead.

And the keeper of the prison awaking out of his sleep, and seeing the prison doors open, he drew out his sword, and would have killed himself, supposing that the prisoners had been fled.

And when the south wind blew softly, supposing that they had obtained their purpose, loosing thence, they sailed close by Crete.