Charles Ellicott Commentary 2 Kings 10:23

"And Jehu went, and Jehonadab the son of Rechab, into the house of Baal; and he said unto the worshippers of Baal, Search, and look that there be here with you none of the servants of Jehovah, but the worshippers of Baal only." — 2 Kings 10:23 (ASV)

And Jehu went ... into the house — that is, into the outer court before the temple, where all the worshippers were waiting.

That there be here with you none of the servants of the Lord. — This precaution of Jehu’s suggests suspicion to a modern reader, but it would suggest the very contrary to the Baal-worshippers—namely, an extraordinary reverence for Baal, a dread that some profane person should be present in his sanctuary.

Servants of the Lord. — Worshippers of Jehovah.