2 Bible Verses about Foolishness

but every one that heareth these instructions of mine, and practiseth them not, shall be compared to a fool who built his house upon the sand: the rain descends, the flood rushes on, the winds blow, and beat upon the house: down it falls, and wide are its ruins. At length Jesus finished his discourse, and the people were fill'd with astonishment at his doctrine.

Why do you call me Lord, Lord, and do not observe what I say? I will show you, who that man is like, who comes to me, and practises what I prescribe. he is like a man who in building a house, digg'd deep, and laid the foundation on a rock: an inundation came, the current beat impetuously upon that house, but could not shake it: for it was founded upon a rock. read more.
but he that does not practise what he hears, is like a man who built his house upon the loose earth without any foundation: the current beat impetuously against it: in the instant down it fell, and great were its ruins.

where is the wise? where is the scribe? where is the disputant of this age? has not God prov'd the wisdom of this world to be downright folly. for whereas the world, with all their learning, did not distinguish the characters of his divine wisdom, in his works, it pleased God to save those who believe, by preaching, which they counted folly. while the Jews require signs, and the Greeks seek wisdom: read more.
we preach Christ crucified, an obstacle to the Jews indeed, and to the Gentiles foolishness: but to those who believe, both Jews and Gentiles, he is the Christ, the power of God, and the wisdom of God. for this divine doctrine, as foolish and weak as men may think it, far surpasses all their wisdom, and baffles all their power.

But fornication, and all impurity, or inordinate desire, let it not be approved by you, as being unworthy of christians: neither ribaldry, nor buffoonry, which they call pleasantry, but is indecent: be you rather exercised in social virtue.

but the animal man does not receive the effusions of the spirit of God; for they are foolishness to him; neither can he understand them, because they are spiritually discerned.

For tho' the doctrine of the cross seems folly to those that perish: yet we that are to be saved, do feel its energy is divine.

let no man deceive himself: if any among you pretends to worldly wisdom, let him commence fool, in order to be truly wise. for the wisdom of this world is folly, in the eye of God: as it is written, "he surprizes the wise in all their artifices."

for it seems as if God had exposed us apostles the last upon the stage, as persons appointed to death. for we are made a spectacle to the world, to angels, and to men. we are made fools for our attachment to Christ, while you, who are christians too, still pass for the wise: we are in poverty, but you are in power: you meet with esteem, but we find contempt.