II Maccabees 12:45

45 And also in that he perceived that there was great favour laid up for those that died godly, it was an holy and good thought. Whereupon he made a reconciliation for the dead, that they might be delivered from sin.

II Maccabees 12:45 In-Context

43 And when he had made a gathering throughout the company to the sum of two thousand drachms of silver, he sent it to Jerusalem to offer a sin offering, doing therein very well and honestly, in that he was mindful of the resurrection:
44 For if he had not hoped that they that were slain should have risen again, it had been superfluous and vain to pray for the dead.
45 And also in that he perceived that there was great favour laid up for those that died godly, it was an holy and good thought. Whereupon he made a reconciliation for the dead, that they might be delivered from sin.

The Brenton translation of the Septuagint is in the public domain.