Yesaya 16:5

16:5 Then a trustworthy king will be established;

he will rule in a reliable manner,

this one from David’s family. ¹ 

He will be sure to make just decisions

and will be experienced in executing justice. ² 

Yesaya 22:22

22:22 I will place the key ³  to the house of David on his shoulder. When he opens the door, no one can close it; when he closes the door, no one can open it.

[16:5]  ¹ tn Heb “and a throne will be established in faithfulness, and he will sit on it in reliability, in the tent of David.”

[16:5]  ² tn Heb “one who judges and seeks justice, and one experienced in fairness.” Many understand מְהִר (mÿhir) to mean “quick, prompt” (see BDB 555 s.v. מָהִיר), but HALOT 552 s.v. מָהִיר offers the meaning “skillful, experienced,” and translates the phrase in v. 5 “zealous for what is right.”

[22:22]  ³ sn This may refer to a literal insignia worn by the chief administrator. Even so, it would still symbolize the administrator’s authority to grant or exclude access to the king. See J. N. Oswalt, Isaiah (NICOT), 1:422.