Maggie's Farm

Odd place to start as the original Hebrew starts a new paragraph with verse 3:

Strengthen weak hands and failing knees encourage/reinforce.

4. No "terrible" in the original.

5. There is a root in Hebrew that variously means open-eyed/able to see/supervision/clever. This word is used here, and the regular word for "open" for the ears. "Unstopped" is the translator's fancy way to avoid the inelegant repetition of "open" in English.

6. Speechless is mute/dumb. "Sing with joy" is a single word in Hebrew. "Break forth" - nope. It's describing seasonal riverbeds that have dried to the point where the clay has split. Water will run through those fissures again. Similarly "stream" in the 2nd strophe is specifically a seasonal arroyo/wadi.... Water is precious and life giving, and features prominently and consistently in the Jewish Bible which was largely written in arid Israel.