Parallel
Isaiah 35:3
Swete's Septuagint · Berean Standard Bible
ἰσχύσατε, χεῖρες ἀνειμέναι καὶ γόνατα παραλεφοβεῖσθε·
Strengthen the limp hands and steady the feeble knees (note: Cited in Hebrews 12:12)!