1 Corinthians 9:10

or saith he it assuredly for our sake? Yea, for our sake it was written: because he that ploweth ought to plow in hope, and he that thresheth, to thresh in hope of partaking. [Those fond of carping and caviling have attempted to use this passage to prove that Paul asserts that God does not care for animals. Such a view is abundantly contradicted by Scripture (Job 38:41; Psalms 147:9; Matthew 6:26; Luke 12:24). Paul's meaning is clear. In giving the law, God's proximate design was to care for oxen, but his ultimate design was to enforce the principle that labor should not go unrewarded; that each workman might discharge his task in cheerful expectation that he would receive wages for his employment. Paul asserts that God does not legislate for oxen and forget men. It is an argument a minori ad magnus, such as Christ himself employed (Matthew 6:26-30) Third argument: The law of exchange demands an equivalent for value received.]