96 Or “prison.”
97 L&N 6.21 has “stocks” for εἰς τὸ ξύλον (eis to xulon) here, as does ξύλον 2.b. However, it is also possible (as mentioned in L&N 18.12) that this does not mean “stocks” but a block of wood (a log or wooden column) in the prison to which prisoners’ feet were chained or tied. Such a possibility is suggested by v. 26, where the “bonds” (“chains”?) of the prisoners loosened.

In other versions

Having received this order, he put them into the inner prison and fastened their feet in the stocks.

When he received these orders, he put them in the inner cell and fastened their feet in the stocks.

Receiving such an order, he put them into the inner prison and secured their feet in the stocks.

So the jailer put them into the inner dungeon and clamped their feet in the stocks.

Having received such an order, he put them in the inner prison and fastened their feet in the stocks.

Who, having received such a charge, thrust them into the inner prison, and made their feet fast in the stocks.

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