'Supposing' in the Bible

But Jews came from Antioch and Iconium, and having won over the crowds, they stoned Paul and dragged him out of the city, supposing him to be dead.

And on the Sabbath day we went outside the gate to a riverside, where we were supposing that there would be a place of prayer; and we sat down and began speaking to the women who had assembled.

When the jailer awoke and saw the prison doors opened, he drew his sword and was about to kill himself, supposing that the prisoners had escaped.

When a moderate south wind came up, supposing that they had attained their purpose, they weighed anchor and began sailing along Crete, close inshore.