Romans 2:21; Romans 10:8; Romans 10:14-15
Thou therefore which teachest another, teachest thou not thyself? thou that preachest a man should not steal , dost thou steal ?
But what saith it ? The word is nigh thee, even in thy mouth, and in thy heart: that is , the word of faith, which we preach ;
How then shall they call on him in whom they have not believed ? and how shall they believe in him of whom they have not heard ? and how shall they hear without a preacher ?
And how shall they preach , except they be sent ? as it is written , How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things!