OET interlinear LAM 3:21

uW Translation Notes:

Note 1 topic: figures-of-speech / explicit

זֹ֛את אָשִׁ֥יב אֶל־לִבִּ֖⁠י

this(f) (Some words not found in UHB: this(f) call to/towards heart_of,my on/upon/above/on_account_of//he/it_went_in yes/correct/thus/so have_hope )

Here, This refers forward to what the writer is about to say, not back to what he has just described. Alternate translation: [This is what I recall]

Note 2 topic: figures-of-speech / metaphor

אָשִׁ֥יב אֶל־לִבִּ֖⁠י

(Some words not found in UHB: this(f) call to/towards heart_of,my on/upon/above/on_account_of//he/it_went_in yes/correct/thus/so have_hope )

Here the heart represents where the writer’s thoughts and emotions exist. He is speaking of recalling something as if he were physically bringing it back to his heart. You may have a comparable expression in your language, or you could state the meaning plainly. Alternate translation: [I recall in my mind]

Note 3 topic: grammar-connect-logic-result

עַל־כֵּ֥ן אוֹחִֽיל

on/upon/above/on_account_of//he/it_went_in (Some words not found in UHB: this(f) call to/towards heart_of,my on/upon/above/on_account_of//he/it_went_in yes/correct/thus/so have_hope )

The word translated as therefore indicates that what follows is a result of what the writer has just brought back to mind. Use a word or phrase that makes this relationship clear. Alternate translation: [and so I will hope]