'Safely' in the Bible

“We found the prison securely locked and the guards standing at the doors, but when we opened [the doors], we found no one inside.”

After striking them many times [with the rods], they threw them into prison, commanding the jailer to guard them securely.

and [he commanded] the rest to follow, some on [floating] planks, and others on various things from the ship. And so it was that all of them were brought safely to land.