Thematic Bible: What preachers should do

You know, do you not, that those who minister in the temple, and those who serve at the altar, get their portion of the sacrifices? Even so the Lord ordained that those who proclaim the gospel should get their living by the gospel.

My children, I am writing this to you that you may not continue to sin; but if any one sin, we ever have a Comforter before the Father, Jesus Christ the Righteous. And he is the propitiation for our sins, and not for ours only, but also for those of the whole world. This is how we may know that we have come to know Him, by always keeping his commandments. read more.
He who says, "I know Him," but does no continue obeying his commandments, is a liar, and the truth is not in him; bit if any man obey his word, in him truly is the love of God made perfect. By this we come to know that we are in him. By who says he "remains in him" ought to spend his life as he spent his.