'Secured' in the Bible

Command therefore that the sepulchre be secured until the third day, lest his disciples should come and steal him away, and say to the people, He is risen from the dead; and the last error shall be worse than the first.

And they went and secured the sepulchre, having sealed the stone, with the watch besides.

who, having received such a charge, cast them into the inner prison, and secured their feet to the stocks.