23 The same day came to him the Sadducees, which say that there is no resurrection, and asked him,
24 Saying, Master, Moses said, If a man die, having no children, his brother shall marry his wife, and raise up seed unto his brother.
25 Now there were with us seven brethren: and the first, when he had married a wife, deceased, and, having no issue, left his wife unto his brother:
26 Likewise the second also, and the third, unto the seventh.
27 And last of all the woman died also.
28 Therefore in the resurrection whose wife shall she be of the seven? for they all had her.
29 Jesus answered and said unto them, Ye do err, not knowing the scriptures, nor the power of God.
30 For in the resurrection they neither marry, nor are given in marriage, but are as the angels of God in heaven.
31 But as touching the resurrection of the dead, have ye not read that which was spoken unto you by God, saying,
32 I am the God of Abraham, and the God of Isaac, and the God of Jacob? God is not the God of the dead, but of the living.
33 And when the multitude heard this, they were astonished at his doctrine.
34 But when the Pharisees had heard that he had put the Sadducees to silence, they were gathered together.
As you can read in Jesus' response above we will not know our spouses as spouses if we make it Heaven. We will have no knowledge of our earthly lives. It is a sound commonsense principle; if we recognize our family as family then we will recognize that certain people in our family did not make it, that would lead to sadness and sorrow. And we all know that sadness and sorrow are absent from Heaven.
The next teaching, or saying, concerns the resurrection itself, in which the Sadducees did not believe in. "G-D is the God of the living not the dead" This saying of Christ is often misunderstood in my opinion. We think of living as eternal to this earthly existence. Christ spoke of "life" as eternal to our Soul's Heavenly existence. This opens the door to a lot of questions concerning G-D and how G-D perceives those on earth. All I can say is; we are not G-D and aside from the teachings we have it is not a subject that we should concern ourselves with. Remember this teaching from the Torah;
Deuteronomy 29:29 The secret things belong unto the Lord our God: but those things which are revealed belong unto us and to our children for ever, that we may do all the words of this law.
Meaning; G-D will not hold us accountable for things only known to G-D. So why worry about it...
35 Then one of them, which was a lawyer, asked him a question, tempting him, and saying,
36 Master, which is the great commandment in the law?
37 Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
38 This is the first and great commandment.
39 And the second is like unto it, Thou shalt love thy neighbour as thyself.
40 On these two commandments hang all the law and the prophets.
Jesus taught the Torah with authority and purity. In the prophecies of Isaiah concerning Yeshua it is written:
Isaiah 42:21 The Lord is well pleased for his righteousness' sake; he will magnify the law, and make it honourable.
People were going through the motions of the Law or Torah without changing their hearts. Works of the Law, as a "system" of salvation, started dying on the vine way before Jesus came to earth.
2 Hear, O heavens, and give ear, O earth: for the Lord hath spoken, I have nourished and brought up children, and they have rebelled against me.
3 The ox knoweth his owner, and the ass his master's crib: but Israel doth not know, my people doth not consider.
4 Ah sinful nation, a people laden with iniquity, a seed of evildoers, children that are corrupters: they have forsaken the Lord, they have provoked the Holy One of Israel unto anger, they are gone away backward.
5 Why should ye be stricken any more? ye will revolt more and more: the whole head is sick, and the whole heart faint.
6 From the sole of the foot even unto the head there is no soundness in it; but wounds, and bruises, and putrifying sores: they have not been closed, neither bound up, neither mollified with ointment.
7 Your country is desolate, your cities are burned with fire: your land, strangers devour it in your presence, and it is desolate, as overthrown by strangers.
8 And the daughter of Zion is left as a cottage in a vineyard, as a lodge in a garden of cucumbers, as a besieged city.
9 Except the Lord of hosts had left unto us a very small remnant, we should have been as Sodom, and we should have been like unto Gomorrah.
10 Hear the word of the Lord, ye rulers of Sodom; give ear unto the law of our God, ye people of Gomorrah.
11 To what purpose is the multitude of your sacrifices unto me? saith the Lord: I am full of the burnt offerings of rams, and the fat of fed beasts; and I delight not in the blood of bullocks, or of lambs, or of he goats.
12 When ye come to appear before me, who hath required this at your hand, to tread my courts?
13 Bring no more vain oblations; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot away with; it is iniquity, even the solemn meeting.
14 Your new moons and your appointed feasts my soul hateth: they are a trouble unto me; I am weary to bear them.
15 And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood.
16 Wash you, make you clean; put away the evil of your doings from before mine eyes; cease to do evil;
17 Learn to do well; seek judgment, relieve the oppressed, judge the fatherless, plead for the widow.
18 Come now, and let us reason together, saith the Lord: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
19 If ye be willing and obedient, ye shall eat the good of the land:
20 But if ye refuse and rebel, ye shall be devoured with the sword: for the mouth of the Lordhath spoken it
Yeshua came to perfect the Law in our hearts.
41 While the Pharisees were gathered together, Jesus asked them,
42 Saying, What think ye of Christ? whose son is he? They say unto him, The son of David.
43 He saith unto them, How then doth David in spirit call him Lord, saying,
44 The Lord said unto my Lord, Sit thou on my right hand, till I make thine enemies thy footstool?
45 If David then call him Lord, how is he his son?
46 And no man was able to answer him a word, neither durst any man from that day forth ask him any more questions.
Many say, and it is written in certain places as well, that Jesus did not want his identity known. That is not necessarily true. He certainly identified himself as Lord many times. This teaching seems to contradict the popular belief of the Messiah in 1st century Israel, a belief that survives today. That the Messiah would be only a man, a earthly warrior king who would descend from the bloodline of King David. Thus it confines the Messiah to realm of a earthly king.
Jesus let his tempters know where he receives his authority and who his Father is. He does not receive his authority simply because he descended from King David and his genealogy is not the center of his Kingship. His Father is G-D, his Kingship and Authority are ordained of G-D, not genealogy.