First, notice the little word here where he says, "He called for his servants. No one preaches without a calling and without being asked.
2. if thou art called or appointed to the preaching ministry, see that thou lay out the Lord's money usurpingly, and mix not thy money with it. Which is to be understood, that one should preach God's word and the gospel purely, without addition and without human doctrine; for God's word and human doctrine do not agree. We have spoken of this above in the sermon on St. Andrew's Day.
*) Cf. Erl. A. 64, 262. ed.
(3) He has who uses the gifts of God for the salvation of the other brethren, and to him the gift and grace will be increased. But he has nothing who does not use the received gift of God for the benefit of others; from him the gift will be taken away, and finally he will be blinded and hardened, so that he will not see what he saw before.
4 Here human merits are rejected; for you hear that the servants take the money from the Lord, that they may prosper and gain. And the Lord, because they were faithful, gives them the money with the profits, and the cities over it, by grace and goodness alone.