'Security' in the Bible

saying, We found the prison shut with all security, and the keepers standing at the doors; but when we had opened them, within we found no one.

Now Herod had been in a violent quarrel with the people of Tyre and Sidon. So they came to him as a group. After they had won over Blastus, who oversaw security for the king's sleeping quarters, they asked for a peace agreement because their country depended on the king's country for food.

After giving them a severe beating, they threw them in jail and ordered the jailer to keep them under tight security.

And when they had taken security of Jason, and of the other, they let them go.