# What will I testify for you?

"There is nothing that I can say to testify for you."

# To what can I compare you, ... Jerusalem?

"There is nothing to which I can compare you, ... Jerusalem." 

# To what can I liken you ... Zion?

"There is nothing to which I can liken you ... Zion" or "I cannot say that you are like anything ... Zion."

# Your wound is as great as the sea

"Your suffering is as terrible as the sea is large"

# Who can heal you?

"No one can heal you." or "No one can restore you."