Isaiah 22:4 shows the prophet refusing comfort over destruction, reinforcing the inconsolable grief in Isaiah 51:19.

Isaiah 47:9 begins 'These two things shall come to you' listing calamities — same formula and judgment theme.

Isaiah 61:2 promises comfort for mourners, contrasting the lack of comfort in Isaiah 51:19 with future hope.

Job 42:11 describes friends comforting Job after restoration, contrasting the absence of any comforter in Isaiah 51:19.

Psalm 69:20 says 'I looked for comforters, but found none' — exactly the same lack of comfort.

Ecclesiastes 4:1 observes the oppressed with no comforter, directly echoing 'who will comfort you?' in Isaiah 51:19.

Jeremiah 9:17-21 calls for professional mourners, echoing the devastation and lack of comfort in Isaiah 51:19.

Lamentations 1:9 uses 'no comforter,' directly paralleling the lament of no one to console in Isaiah 51:19.

Lamentations 1:16 says the comforter is far away because children are desolate, a direct parallel to the devastation in Isaiah 51:19.

Lamentations 1:17 describes Zion with no comforter, a direct parallel to 'who will comfort you?' in Isaiah 51:19.

In 2 Corinthians 7:6, God comforts the downcast — a direct contrast to the desolation in Isaiah where no one comforts.

Jeremiah 15:5 asks who will pity Jerusalem — nearly identical rhetoric to Isaiah's lament of no comforter.

Lamentations 1:2 says she has none to comfort her — directly echoing Isaiah's complaint of no comforter.

In Nahum 3:7, the same rhetorical question 'Who will mourn for her?' appears for Nineveh's devastation, echoing Jerusalem's desolation here.

Job 2:11 has friends coming to comfort Job — opposite to the rhetorical 'who will be sorry for you?'

Ezekiel 14:21 lists four judgments (sword, famine, wild beasts, pestilence) — similar to the desolation and famine and sword.