Hebrews 12:3, 5
Consider Him who endured such hostility from sinners, so that you will not grow weary and lose heart. . . .

Job 4:3, 4
Surely you have instructed many, and have strengthened their feeble hands. . . .

Isaiah 35:3
Strengthen the limp hands and steady the feeble knees!

Ezekiel 7:17
Every hand will go limp, and every knee will turn to water.

Ezekiel 21:7
And when they ask, 'Why are you groaning?' you are to say, 'Because of the news that is coming. Every heart will melt, and every hand will go limp. Every spirit will faint, and every knee will turn to water.' Yes, it is coming and it will surely happen, declares the Lord GOD."

Daniel 5:6
his face grew pale and his thoughts so alarmed him that his hips gave way and his knees knocked together.

Nahum 2:10
She is emptied! Yes, she is desolate and laid waste! Hearts melt, knees knock, bodies tremble, and every face grows pale!

1 Thessalonians 5:14
And we urge you, brothers, to admonish the unruly, encourage the fainthearted, help the weak, and be patient with everyone.