Albert Barnes Commentary Isaiah 36:3

"Then came forth unto him Eliakim the son of Hilkiah, who was over the household, and Shebna the scribe, and Joah, the son of Asaph, the recorder." — Isaiah 36:3 (ASV)

Then came forth to him - Isaiah has here omitted what is recorded in 2 Kings 18:18, namely, that Rabshakeh and his companions ‘called to the king,’ and as a result of that, Hezekiah probably sent out Eliakim.

Eliakim, Hilkiah’s son, who was over the house - Regarding Eliakim and his character, see the notes at Isaiah 22:20-25.

And Shebna the scribe - This may have been some other man than the one mentioned in Isaiah 22:15. He is there said to have been ‘over the house,’ and it is stated that he would be degraded from that office and succeeded by Eliakim. It is possible, however, that Hezekiah retained him as scribe or as secretary (see the analysis of Isaiah 22:15-25).

And Joah, Asaph’s son, the recorder - The “chronicler;” the officer entrusted with keeping the state records. The Hebrew word means ‘the remembrancer;’ one by whose means former events might be recalled and remembered, perhaps an officer who would be called a historiographer.