"If two people of the same sex really love each other and are willing to stay faithful for life, why can't they get married?

The reason why people of the same sex who love each other and are willing to be faithful for life cannot get married is because there is more to marriage than love and faithfulness. These are necessary ingredients, but they are not the only ones. Our modern culture finds it difficult to understand why marriage is only for heterosexuals because it does not understand the purpose and meaning of marriage and sexuality.

This difficulty exists partly because contraception has divorced procreation from sex. If a heterosexual couple can engage in sexual activity that is opposed to the transmission of life, why can’t members of the same sex do likewise?

To understand why marriage is only for the joining of a man and a woman, we need to step back from the influences of the world and define the essential characteristics of marriage and sex.

We did not invent either one. They are God’s creation, and according to his designs, when a man and woman make love, they are saying their wedding vows with their bodies. Such a concept is easy to understand when you consider the essence of marriage. For a valid marriage to take place, the union must be free, total, faithful, and designed to give life. All these characteristics are necessary. For example, imagine a couple who agree to marry and have children but refuse to be faithful to one another. This is not a marriage. Likewise, if a couple are willing to have an exclusive and lifelong relationship but are incapable of having the sexual relations designed to give life, they would be incapable of marriage."

Yeah right, and what about unfertile couples?