'Body Is Weak' in the Bible

Why do you insist on being battered? Why do you continue to rebel? Your head has a massive wound, your whole body is weak.

All of you must stay awake and pray that you won't be tempted. The spirit is indeed willing, but the body is weak."

All of you must stay awake and pray that you won't be tempted. The spirit is indeed willing, but the body is weak."

Because they say, His letters are indeed weighty and powerful; but the presence of his body is weak, and his speech contemptible.