Luke 20:38

All live unto him - There is a remarkable passage in Josephus's account of the Maccabees, chap. xvi., which proves that the best informed Jews believed that the souls of righteous men were in the presence of God in a state of happiness. "They who lose their lives for the sake of God, Live unto God, as do Abraham, Isaac, and Jacob, and the rest of the patriarchs." And one not less remarkable in Shemoth Rabba, fol. 159. "Rabbi Abbin saith, The Lord said unto Moses, Find me out ten righteous persons among the people, and I will not destroy thy people. Then said Moses, Behold, here am I, Aaron, Eleazar, Ithamar, Phineas, Caleb, and Joshua; but God said, Here are but seven, where are the other three? When Moses knew not what to do, he said, O Eternal God, do those live that are dead! Yes, saith God. Then said Moses, If those that are dead do live, remember Abraham, Isaac, and Jacob." So the resurrection of the dead, and the immortality and immateriality of the soul, were not strange or unknown doctrines among the Jews.

20:38 He is not a God of the dead, or, there is no God of the dead - That is, tho term God implies such a relation, as cannot possiblysubsist between him and the dead; who in the Sadducees' sense are extinguished spirits; who could neither worship him, nor receive good from him. So that all live to him - All who have him for their God, live to and enjoy him. This sentence is not an argument for what went before; but the proposition which was to be proved. And the consequence is apparently just. For as all the faithful are the children of Abraham, and the Divine promise of being a God to him and his seed is entailed upon them, it implies their continued existence and happiness in a future state as much as Abraham's.And as the body is an essential part of man, it implies both his resurrection and theirs; and so overthrows the entire scheme of the Sadducean doctrine.