'Weak' in the Bible

and not having been weak in the faith, he did not consider his own body, already become dead, (being about a hundred years old,) and the deadness of Sarah's womb,

for what the law was not able to do, in that it was weak through the flesh, God, His own Son having sent in the likeness of sinful flesh, and for sin, did condemn the sin in the flesh,

And him who is weak in the faith receive ye -- not to determinations of reasonings;

one doth believe that he may eat all things -- and he who is weak doth eat herbs;

Right it is not to eat flesh, nor to drink wine, nor to do anything in which thy brother doth stumble, or is made to fall, or is weak.

And we ought -- we who are strong -- to bear the infirmities of the weak, and not to please ourselves;