'Weak' in the Bible

[This is] because the foolishness of God [is not foolishness at all and] is wiser than men [far beyond human comprehension], and the weakness of God is stronger than men [far beyond the limits of human effort].

But God has selected [for His purpose] the foolish things of the world to shame the wise [revealing their ignorance], and God has selected [for His purpose] the weak things of the world to shame the things which are strong [revealing their frailty].

We are [regarded as] fools for Christ, but you are so wise in Christ; we are weak, but you are strong; you are highly esteemed, but we are dishonored.

However, not all [believers] have this knowledge. But some, being accustomed [throughout their lives] to [thinking of] the idol until now [as real and living], still eat food as if it were sacrificed to an idol; and because their conscience is weak, it is defiled (guilty, ashamed).

Only be careful that this liberty of yours [this power to choose] does not somehow become a stumbling block [that is, a temptation to sin] to the weak [in conscience].

For if someone sees you, a person having knowledge, eating in an idol’s temple, then if he is weak, will he not be encouraged to eat things sacrificed to idols [and violate his own convictions]?

For through your knowledge (spiritual maturity) this weak man is ruined [that is, he suffers in his spiritual life], the brother for whom Christ died.

And when you sin against the brothers and sisters in this way and wound their weak conscience [by confusing them], you sin against Christ.

To the weak I became [as the] weak, to win the weak. I have become all things to all men, so that I may by all means [in any and every way] save some [by leading them to faith in Jesus Christ].

That [careless and unworthy participation] is the reason why many among you are weak and sick, and a number sleep [in death].

But quite the contrary, the parts of the body that seem to be weaker are [absolutely] necessary;