Walk in wisdom toward them that are without, redeeming the time. Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every man. Colossians 4:5-6

O Timothy, keep that which is committed to thy trust, avoiding profane and vain babblings, and oppositions of science falsely so called: Which some professing have erred concerning the faith. 1 Timothy 6:20-21

But shun profane and vain babblings: for they will increase unto more ungodliness. 2 Timothy 2:16