Fool / Foolish / Foolishness/ Fools

1 Corinthians 1:17-18   (King James Version)
17 For Christ sent me not to baptize, but to preach the gospel: not with wisdom of words, lest the cross of Christ should be made of none effect.

18 For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.

1 Timothy 6:9-12
9 But they that will be rich fall into temptation and a snare, and into many foolish and hurtful lusts, which drown men in destruction and perdition.

10 For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.

11 But thou, O man of God, flee these things; and follow after righteousness, godliness, faith, love, patience, meekness.

12 Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses.

Proverbs 10:1-3

1 The proverbs of Solomon. A wise son maketh a glad father: but a foolish son is the heaviness of his mother.

2 Treasures of wickedness profit nothing: but righteousness delivereth from death.

3 The Lord will not suffer the soul of the righteous to famish: but he casteth away the substance of the wicked.