The Scofield Bible Commentary, by Cyrus Ingerson Scofield, [1917], at sacred-texts.com
burden
See note 1,
(See Scofield) - (Isa 13:1).
Shebna
(Isa 22:15-19). A foreigner and court favourite displaced as treasurer by Eliakim. (Isa 36:3); (Isa 37:2).
open
Here the prophecy looks forward to Christ. (Rev 3:7).