2 Maccabees 12:38

38 Then Judas assembled his army and went to the city of Adullam. As the seventh day was coming on, they purified themselves according to the custom, and they kept the sabbath there.

2 Maccabees 12:38 In-Context

36 As Esdris and his men had been fighting for a long time and were weary, Judas called upon the Lord to show himself their ally and leader in the battle.
37 In the language of their fathers he raised the battle cry, with hymns; then he charged against Gorgias' men when they were not expecting it, and put them to flight.
38 Then Judas assembled his army and went to the city of Adullam. As the seventh day was coming on, they purified themselves according to the custom, and they kept the sabbath there.
39 On the next day, as by that time it had become necessary, Judas and his men went to take up the bodies of the fallen and to bring them back to lie with their kinsmen in the sepulchres of their fathers.
40 Then under the tunic of every one of the dead they found sacred tokens of the idols of Jamnia, which the law forbids the Jews to wear. And it became clear to all that this was why these men had fallen.
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.