'Frail' in the Bible

Keep awake, and pray that you may not enter into temptation: the spirit is right willing, but the body is frail."

Be wakeful, all of you, and keep on praying, that you may not come into temptation: the spirit is right willing, but the body is frail."

For what was impossible to the Law--powerless as it was because it acted through frail humanity--God effected. Sending His own Son in a body like that of sinful human nature and as a sacrifice for sin, He pronounced sentence upon sin in human nature;

But we have this precious treasure [the good news about salvation] in [unworthy] earthen vessels [of human frailty], so that the grandeur and surpassing greatness of the power will be [shown to be] from God [His sufficiency] and not from ourselves.

to reveal His Son in me so that I might preach Him among the Gentiles [as the good news—the way of salvation], I did not immediately consult with anyone [for guidance regarding God’s call and His revelation to me].

Moreover here frail mortal men receive tithes: there one receives them about whom there is evidence that he is alive.

For the Law appoints men as high priests who are weak [frail, sinful, dying men], but the word of the oath [of God], which came after [the institution of] the Law, permanently appoints [as priest] a Son who has been made perfect forever.