The Bible teaches in Genesis that God created Adam and Eve in His image. God's image is not limited to sexuality but sexuality is partly involved in making up that image. Some say that the image of God cannot include sexuality because animals also have male and female sexuality. But, again, animal sexuality and human sexuality are universes apart. Animal sexuality only involves reproduction. Human sexuality involves communication of the spirit and soul as well as that of the body. In the New Testament human sexuality is used as a picture of Christ's spiritual relationship with the Church, the body of all true believers in Christ (Ephesians 5:31-32).
In Genesis 5:2 we read "Male and female created he them; and blessed them, and called their name Adam, in the day when they were created" (KJV). Notice that both the male and female were called "Adam" by God. Eve was taken out of Adam for Eve had already existed within Adam. The Bible teaches that God finished His creation on the seventh day which means that Eve, including her soul, must have existed in Adam since Eve was formed after creation week. The original Adam was both male and female.
The Bible expresses God as having both feminine and masculine characteristics. For example, sometimes God is pictured in Scripture as being nurturing as a mother. Both masculine and feminine are complementary not contradictory. It is the communication of give and take involved between male and female. Within God this give and take is perfect without selfishness or sin.
Why, then, does God refer to Himself as "He" in Scripture? One reason for why God, mostly, identifies with the male role, is because, after the fall of Adam and Eve, God has designed for the man to be the head of the household. Positionally, Eve was not put under Adam until after the Fall (original sin). She was put under Adam because she was the first to sin. Because of sin and the selfishness that comes from sin there cannot exist two equal heads of a household. For the better or worse one has to be in charge and be accountable for the whole family. Genesis is clear that only after Eve and Adam sinned was Eve put, positionally, under Adam, although both are equally created in God's image and stand equally in worth and value before Him.
Will there be sexual relations in heaven? Some say "no" because Jesus said we will be like the angels. But, in the context that Jesus was speaking about, what He meant is that we will be like the angels in that there will be no marriage in heaven. No one will belong only to one person and there will be no building of families in heaven as marriage involves. But, we will not be like the angels in every way. For example, the Bible teaches that we will continue to be able to eat and enjoy food in our resurrected bodies, but angels are strictly spirit beings and don't eat food.
On earth sex is reserved for marriage, but that does not necessarily mean that sex in heaven must require marriage. In this life sex within marriage also is a test of faithfulness, but in heaven no such test is necessary for only the faithdul will be there. But, if there is sex in heaven it will be driven spiritually and by perfect love. It will not be driven by lust or the body and, yet, it will be more enjoyable for soul and body than any sex on earth. It is not something that we can now imagine in our fallen, selfish, and sinful state.
The Bible teaches that there will be both spiritual and bodily enjoyment in heaven. For example, in Psalm 16:11 we read that in God's presence there will be fullness of joy (this is spiritual) and at God's right hand there will be pleasures forevermore (pleasure is something experienced physically).
We must distinguish between selfishness and what I call "selfness". Selfishness is sin because it involves wrong motives. Selfness, however, is not sin. When you want to enjoy good food it is not sin, but when you let the enjoyment of food control you then that is sin. Just because you want something for yourself does not mean you are being selfish. God wants us to love ourselves and others but in the right way.
In the Bible there are various things we call "types" because they picture spiritual things, but that doesn't mean they are limited only to the spiritual realm. Jesus said eating bread and drinking wine are a type of communion with Him spiritually. Jesus was not talking about eating His physical body and blood. He Himself said in John 6:63 that He was talking spiritually when He talked about eating His flesh and drinking His blood.
When we who know Christ as our personal Lord and Savior are finally with Him then the full spiritual meaning of this will be realized, but that doesn't mean because the type is fulfilled in heaven that there won't be anymore eating and drinking. Even Jesus said that He would drink the fruit of the vine with His disciples in the Kingdom.
The Bible says that we do all things in life for the glory of God, even our eating and drinking, and, yes, our sex too. In this sense everything is spiritual because it is done with God in mind. When God is given thanks for the food we eat then eating and enjoying that food has a spiritual component. That's what is meant by glorifying God in all we do.
Only when the image of God that exists in both sexes is realized and respected then, truly, both men and women will have respect for each other in all areas of relationships. Of course, God's image is more than sexuality. It also encompasses His righteousness, His moral nature, His creativity, intelligence, reasoning, emotions, and a host of other elements.
In our present humanity, because of sin, God's image has been corrupted but we still carry His image.
Because Jesus Christ, God's eternal and only begotten Son, paid the penalty for sin that we can never fully pay to redeem ourselves, and because He rose from the dead, through genuine faith in Christ we can be forgiven of our sins and enjoy, though imperfectly, the presence of God in our lives now and perfectly enjoy His presence and everything He has for us in heaven.
Just as a co-signer of a loan takes the legal responsibility of paying someone else's debt when the borrower defaults on the loan because the borrower can no longer afford to pay, so, too, Jesus Christ is mankind's co-signer before God the Father for the infinite debt we owe God because of our sins and that no amount of good works or rituals or anything we can do can fully pay. If we could get to heaven through the Ten Commandments then there was no need for Christ to come and die on the Cross for our sins. Genuine faith in Christ and love for God will produce good works in our lives and help us to follow the Ten Commandments even though not perfectly. No one, in this life, can perfectly fulfill the Ten Commandments in thought, word, and deed.
Enjoy God, my friend, and some day everything and all enjoyment, physical as well as spiritual, will be yours for eternity.
The Bible says, "For God so loved the world that He gave His only begotten Son, that whosoever believeth in Him should not perish, but have everlasting life" (John 3:16, KJV).
Below are a few Internet sources that the reader will find very helpful concerning the subject of God's image and human sexuality.
The author, Babu G. Ranganatha, has his B.A. with concentrations in theology and biology and has been recognized for his writings on religion and science in the 24th edition of Marquis "Who's Who In The East". The author's writings may be accessed at: Babu G. Ranganathan's Articles on Religion and Science".