'Weak' in the Bible

But the foolish [things] of the world God chose in order that he might put to shame the wise, and the weak [things] of the world God chose in order that he might put to shame the strong,

We [are] fools for the sake of Christ, but you [are] prudent in Christ! We [are] weak, but you [are] strong! You [are] honored, but we [are] dishonored!

But this knowledge [is] not in everyone. But some, being accustomed until now to the idol, eat [this food] as food sacrificed to idols, and their conscience, [because it] is weak, is defiled.

But watch out lest somehow this right of yours becomes a cause for stumbling to the weak.

For if someone should see you who has knowledge reclining for a meal in an idol's temple, will not his conscience, [because it] is weak, be strengthened so that [he] eats the food sacrificed to idols?

For the one who is weak--the brother for whom Christ died--is destroyed by your knowledge.

Now [if you] sin in this way against the brothers and wound their conscience, which is weak, you sin against Christ.

To the weak I became weak, in order that I may gain the weak. I have become all [things] to all [people], in order that by all means I may save some.

Because of this, many [are] weak and sick among you, and quite a few {have died}.