SEV Biblia, Chapter 12:45
Y guardaban la observancia de su Dios, y la observancia de la expiación, y los cantores y los porteros, conforme al estatuto de David y de Salomón su hijo.
John Gill's Bible Commentary
Ver. 45. And both the singers and the porters kept the ward of their God, and the ward of their purification , etc.] The singers kept their turns in course in the temple, and were not wanting to officiate on all occasions, besides morning and evening services; and the porters they diligently kept the gates of the temple, that no impure person or thing in a ceremonial sense entered: according to the commandment of David, and Solomon his son ; who made very good rules and orders relative to the better and more regular performance of service by them; (see 1 Chronicles 25:1 26:1 Chronicles 8:14).
Matthew Henry Commentary
Verses 44-47 - When the solemnities of a thanksgiving day leave such impressions of ministers and people, that both are more careful and cheerful in doin their duty, they are indeed acceptable to the Lord, and turn to goo account. And whatever we do, must be purified by the blood of sprinkling, and by the grace of the Holy Spirit, or it cannot be acceptable to God __________________________________________________________________
Original Hebrew
וישׁמרו 8104 משׁמרת 4931 אלהיהם 430 ומשׁמרת 4931 הטהרה 2893 והמשׁררים 7891 והשׁערים 7778 כמצות 4687 דויד 1732 שׁלמה 8010 בנו׃ 1121