Bible Verses About Vanity: Foolish questions, &c are

from which things some, having missed the mark, have turned aside to vain talking;

desiring to be teachers of the law, though they understand neither what they say, nor about what they strongly affirm.

Timothy, guard that which is committed to you, turning away from the empty chatter and oppositions of the knowledge which is falsely so called;

Remind them of these things, charging them in the sight of the Lord, that they don’t argue about words, to no profit, to the subverting of those who hear.

But shun empty chatter, for it will go further in ungodliness,

but shun foolish questionings, genealogies, strife, and disputes about the law; for they are unprofitable and vain.