This passage answers your question.
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.
When a believer dies, their soul goes to heaven. It is only on the last day that they are given a brand new resurrected body which will in be infinitely more glorious than our present corrupt bodies.
1 Cor 15:49-53
49 And as we have borne the image of the earthy, we shall also bear the image of the heavenly.
50 Now this I say, brethren, that flesh and blood cannot inherit the kingdom of God; neither doth corruption inherit incorruption.
51 Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,
52 In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
53 For this corruptible must put on incorruption, and this mortal must put on immortality.
Moreover, God in His mercy will erase former things/people from our minds.
1 And I saw a new heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea.
2 And I John saw the holy city, new Jerusalem, coming down from God out of heaven, prepared as a bride adorned for her husband.
3 And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.
4 And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
As there is nothing comparable in this world or in our experience, our minds aren't capable of fully understanding just how wonderful this will be.
Our earthly relationships don't even come close, although a godly and loving marriage gives us some small inkling, for in heaven, the elect of God will be the bride of Christ.
9 And there came unto me one of the seven angels which had the seven vials full of the seven last plagues, and talked with me, saying, Come hither, I will shew thee the bride, the Lamb's wife.
10 And he carried me away in the spirit to a great and high mountain, and shewed me that great city, the holy Jerusalem, descending out of heaven from God,
11 Having the glory of God: and her light was like unto a stone most precious, even like a jasper stone, clear as crystal;
12 And had a wall great and high, and had twelve gates, and at the gates twelve angels, and names written thereon, which are the names of the twelve tribes of the children of Israel:
13 On the east three gates; on the north three gates; on the south three gates; and on the west three gates.
14 And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb. ...
18 And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass.
19 And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper; the second, sapphire; the third, a chalcedony; the fourth, an emerald; ....
21 And the twelve gates were twelve pearls; every several gate was of one pearl: and the street of the city was pure gold, as it were transparent glass.
22 And I saw no temple therein: for the Lord God Almighty and the Lamb are the temple of it.
23 And the city had no need of the sun, neither of the moon, to shine in it: for the glory of God did lighten it, and the Lamb is the light thereof.
24 And the nations of them which are saved shall walk in the light of it: and the kings of the earth do bring their glory and honour into it.
25 And the gates of it shall not be shut at all by day: for there shall be no night there. ...
27 And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb's book of life.
Makes you marvel and ask as Paul did in all humility, - 'What is man, that thou art mindful of him?'
Don't be dependent upon your pastor to teach you. Invest in some biblical study tools including a Strong's Concordance. PC software can also be a timesaver when you're responding to posts, as you can more easily find and cut/paste desired passages. But most of all, read your Bible.