Marriage: Instituted by God

The First Marriage - at the beginning of the old testament

Officiated by God, the Creator
God, the Father, gives the first woman to first man.
Marriage = One Man + One Woman = One Flesh

Genesis 2

18And the LORD God said, It is not good that the man should be alone; I will make him an help meet for him. 19And out of the ground the LORD God formed every beast of the field, and every fowl of the air; and brought them unto Adam to see what he would call them: and whatsoever Adam called every living creature, that was the name thereof. 20And Adam gave names to all cattle, and to the fowl of the air, and to every beast of the field; but for Adam there was not found an help meet for him. 21And the LORD God caused a deep sleep to fall upon Adam, and he slept: and he took one of his ribs, and closed up the flesh instead thereof; 22And the rib, which the LORD God had taken from man, made he a woman, and brought her unto the man. 23And Adam said, This is now bone of my bones, and flesh of my flesh: she shall be called Woman, because she was taken out of Man.

24Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.

25And they were both naked, the man and his wife, and were not ashamed.

The Divine Origin of Marriage is confirmed by Jesus in the new testament.

NOTE: In Jesus' answer, He authoritatively states an amendment to Moses' law, easily and comfortably explains the original intent of the Creator's divine institution, not only implies equal or greater authority than Moses, but claims to speak with authority equal even to God.

Also, note how perfectly eloquent and complete His answer is. There is at least one book of which I am aware that was written by four men to try to understand and explain what Jesus says so simply and clearly in these five verses.

Matthew 19

3The Pharisees also came unto him, tempting him, and saying unto him, Is it lawful for a man to put away his wife for every cause?

4And he answered and said unto them, Have ye not read, that he which made them at the beginning made them male and female, 5And said, For this cause shall a man leave father and mother, and shall cleave to his wife: and they twain shall be one flesh? 6Wherefore they are no more twain, but one flesh. What therefore God hath joined together, let not man put asunder.

7They say unto him, Why did Moses then command to give a writing of divorcement, and to put her away?

8He saith unto them, Moses because of the hardness of your hearts suffered you to put away your wives: but from the beginning it was not so.

9And I say unto you, Whosoever shall put away his wife, except it be for fornication, and shall marry another, committeth adultery: and whoso marrieth her which is put away doth commit adultery.

10His disciples say unto him, If the case of the man be so with his wife, it is not good to marry.

11But he said unto them, All men cannot receive this saying, save they to whom it is given. 12For there are some eunuchs, which were so born from their mother's womb: and there are some eunuchs, which were made eunuchs of men: and there be eunuchs, which have made themselves eunuchs for the kingdom of heaven's sake. He that is able to receive it, let him receive it.

NOTE: After Jesus addresses marriage, immediately he says this about children:

13Then were there brought unto him little children, that he should put his hands on them, and pray: and the disciples rebuked them. 14But Jesus said, Suffer little children, and forbid them not, to come unto me: for of such is the kingdom of heaven. 15And he laid his hands on them, and departed thence.