How do they justify those prices? It's almost Pharisaical.
Who at any time serves as a soldier at his own expense? Who plants a vineyard, and does not eat the fruit of it? Or who tends a flock and does not use the milk of the flock? I am not speaking these things according to human judgment, am I? Or does not the Law also say these things? For it is written in the Law of Moses, "YOU SHALL NOT MUZZLE THE OX WHILE HE IS THRESHING." God is not concerned about oxen, is He?
(1 Corinthians 9:7-9 NAS77)
For the Scripture says, "YOU SHALL NOT MUZZLE THE OX WHILE HE IS THRESHING," and "The laborer is worthy of his wages."
(1 Timothy 5:18 NAS77)
Who are you to judge the servant of another? To his own master he stands or falls; and stand he will, for the Lord is able to make him stand.
(Romans 14:4 NAS77)
Do not speak against one another, brethren. He who speaks against a brother, or judges his brother, speaks against the law, and judges the law; but if you judge the law, you are not a doer of the law, but a judge of it. There is only one Lawgiver and Judge, the One who is able to save and to destroy; but who are you who judge your neighbor?
(James 4:11-12 NAS77)