20:9-19 Christ spake this parable against those who resolved not to own his authority, though the evidence of it was so full. How many resemble the Jews who murdered the prophets and crucified Christ, in their enmity to God, and aversion to his service, desiring to live according to their lusts, without control! Let all who are favoured with God's word, look to it that they make proper use of their advantages. Awful will be the doom, both of those who reject the Son, and of those who profess to reverence Him, yet render not the fruits in due season. Though they could not but own that for such a sin, such a punishment was just, yet they could not bear to hear of it. It is the folly of sinners, that they persevere in sinful ways, though they dread the destruction at the end of those ways.

14. reasoned among themselves—(Compare Ge 37:18-20; Joh 11:47-53).

the heir—sublime expression of the great truth, that God's inheritance was destined for, and in due time to come into the possession of, His Son in our nature (Heb 1:2).

inheritance … ours—and so from mere servants we may become lords; the deep aim of the depraved heart, and literally "the root of all evil."