Poured out a prayer - Margin, ‘Secret speech.’ The Hebrew word לחשׁ lachash means properly a whispering, muttering; and thru a sighing, a calling for help. This is the sense here. In their calamity they sighed, and called on God for help.
Related Commentaries of Isaiah 26:16
Isaiah 26:16
16 LORD, in trouble have they visited thee, they poured out a prayere when thy chastening was upon them.