'Weak' in the Bible

but God has chosen the foolish things of the world to shame the wise, and God has chosen the weak things of the world to shame the things which are strong,

We are fools for Christ’s sake, but you are prudent in Christ; we are weak, but you are strong; you are distinguished, but we are without honor.

However not all men have this knowledge; but some, being accustomed to the idol until now, eat food as if it were sacrificed to an idol; and their conscience being weak is defiled.

But take care that this liberty of yours does not somehow become a stumbling block to the weak.

For if someone sees you, who have knowledge, dining in an idol’s temple, will not his conscience, if he is weak, be strengthened to eat things sacrificed to idols?

For through your knowledge he who is weak is ruined, the brother for whose sake Christ died.

And so, by sinning against the brethren and wounding their conscience when it is weak, you sin against Christ.

To the weak I became weak, that I might win the weak; I have become all things to all men, so that I may by all means save some.

For this reason many among you are weak and sick, and a number sleep.