18 Some Sadducees, who say there is no resurrection, came to him and asked him a question, saying, 19 "Teacher, Moses wrote for us that if a man's brother dies, leaving a wife but no child, the man shall marry the widow and raise up children for his brother. 20 There were seven brothers; the first married and, when he died, left no children; 21 and the second married the widow and died, leaving no children; and the third likewise; 22 none of the seven left children. Last of all the woman herself died. 23 In the resurrection whose wife will she be? For the seven had married her." 24 Jesus said to them, "Is not this the reason you are wrong, that you know neither the scriptures nor the power of God? 25 For when they rise from the dead, they neither marry nor are given in marriage, but are like angels in heaven. 26 And as for the dead being raised, have you not read in the book of Moses, in the story about the bush, how God said to him, "I am the God of Abraham, the God of Isaac, and the God of Jacob'? 27 He is God not of the dead, but of the living; you are quite wrong."
Matthew Henry's Commentary on Mark 12:18-27
Commentary on Mark 12:18-27
(Read Mark 12:18-27)
A right knowledge of the Scripture, as the fountain whence all revealed religion now flows, and the foundation on which it is built, is the best preservative against error. Christ put aside the objection of the Sadducees, who were the scoffing infidels of that day, by setting the doctrine of the future state in a true light. The relation between husband and wife, though appointed in the earthly paradise, will not be known in the heavenly one. It is no wonder if we confuse ourselves with foolish errors, when we form our ideas of the world of spirits by the affairs of this world of sense. It is absurd to think that the living God should be the portion and happiness of a man if he is for ever dead; and therefore it is certain that Abraham's soul exists and acts, though now for a time separate from the body. Those that deny the resurrection greatly err, and ought to be told so. Let us seek to pass through this dying world, with a joyful hope of eternal happiness, and of a glorious resurrection.