'Weak' in the Bible

But God has chosen the foolish things of the world, that he may put to shame the wise; and God has chosen the weak things of the world, that he may put to shame the strong things;

We are fools for Christ's sake, but ye prudent in Christ: we weak, but ye strong: ye glorious, but we in dishonour.

But knowledge is not in all: but some, with conscience of the idol, until now eat as of a thing sacrificed to idols; and their conscience, being weak, is defiled.

But see lest anywise this your right to eat itself be a stumbling-block to the weak.

For if any one see thee, who hast knowledge, sitting at table in an idol-house, shall not his conscience, he being weak, be emboldened to eat the things sacrificed to the idol?

and the weak one, the brother for whose sake Christ died, will perish through thy knowledge.

Now, thus sinning against the brethren, and wounding their weak conscience, ye sin against Christ.

I became to the weak, as weak, in order that I might gain the weak. To all I have become all things, in order that at all events I might save some.

On this account many among you are weak and infirm, and a good many are fallen asleep.