Gevurot 12:3-5

Orthodox Jewish Bible

³ Having seen that this was pleasing to the Judeans, Herod proceeded to arrest Kefa also. This happened during the yamim of Chag HaMatzot. [SHEMOT 12:15; 23:25]

⁴ When he had Kefa seized, he put him in the beis hasohar, having handed him over to four squads of chaiyalim to guard him, intending after Pesach to bring him before the people.

⁵ Therefore, Kefa was being kept in the beis hasohar. But tefillah to Hashem was earnestly being made by Moshiach’s Kehillah for him.