1Cor 14.26 How is it then, brethren? when ye come together, every one of you hath a psalm, hath a doctrine, hath a tongue, hath a revelation, hath an interpretation. Let all things be done unto edifying.
Efes 5.19 Speaking to yourselves in psalms and hymns and spiritual songs, singing and making melody in your heart to the Lord;
Col 4.6 Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.