The visible sign is the exchange of vows between the couple. The grace conferred is very specific to this union. Grace to help spouses live day in and day out with each other each with their faults and personality differences and to help them help each other become saints. The grace is also given for raising children since their souls have been entrusted to their parents.
Couples are asked to contact a priest or deacon at least six months prior to the marriage date. St. Jane Frances uses Sponsor couples for Marriage Preparation of engaged couples.
Gen 2:18-25
Then the Lord God said, “It is not good that the man should be alone; I will make him a helper fit for him.” 19 So out of the ground the Lord God formed every beast of the field and every bird of the air, and brought them to the man to see what he would call them; and whatever the man called every living creature, that was its name. 20 The man gave names to all cattle, and to the birds of the air, and to every beast of the field; but for the man there was not found a helper fit for him. 21 So the Lord God caused a deep sleep to fall upon the man, and while he slept took one of his ribs and closed up its place with flesh; 22 and the rib which the Lord God had taken from the man he made into a woman and brought her to the man. 23 Then the man said, “This at last is bone of my bones and flesh of my flesh; she shall be called Woman, because she was taken out of Man.” 24 Therefore a man leaves his father and his mother and cleaves to his wife, and they become one flesh. 25 And the man and his wife were both naked, and were not ashamed.
Gen 1:26-28,31
Then God said, “Let us make man in our image, after our likeness; and let them have dominion over the fish of the sea, and over the birds of the air, and over the cattle, and over all the earth, and over every creeping thing that creeps upon the earth.” So God created man in his own image, in the image of God he created him; male and female he created them. And God blessed them, and God said to them, “Be fruitful and multiply, and fill the earth and subdue it; and have dominion over the fish of the sea and over the birds of the air and over every living thing that moves upon the earth.”…And God saw everything that he had made, and behold, it was very good. And there was evening and there was morning, a sixth day.
Eph 5:2,21-33
And walk in love, as Christ loved us and gave himself up for us, a fragrant offering and sacrifice to God… Be subject to one another out of reverence for Christ. Wives, be subject to your husbands, as to the Lord. For the husband is the head of the wife as Christ is the head of the church, his body, and is himself its Savior. As the church is subject to Christ, so let wives also be subject in everything to their husbands. Husbands, love your wives, as Christ loved the church and gave himself up for her, that he might sanctify her, having cleansed her by the washing of water with the word, that he might present the church to himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish. Even so husbands should love their wives as their own bodies. He who loves his wife loves himself. For no man ever hates his own flesh, but nourishes and cherishes it, as Christ does the church, because we are members of his body. “For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh.” This mystery is a profound one, and I am saying that it refers to Christ and the church; however, let each one of you love his wife as himself, and let the wife see that she respects her husband.
Mt 19:1-9
Now when Jesus had finished these sayings, he went away from Galilee and entered the region of Judea beyond the Jordan; and large crowds followed him, and he healed them there.
And Pharisees came up to him and tested him by asking, “Is it lawful to divorce one’s wife for any cause?” He answered, “Have you not read that he who made them from the beginning made them male and female, and said, ‘For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh’? So they are no longer two but one flesh. What therefore God has joined together, let not man put asunder.” They said to him, “Why then did Moses command one to give a certificate of divorce, and to put her away?” He said to them, “For your hardness of heart Moses allowed you to divorce your wives, but from the beginning it was not so. And I say to you: whoever divorces his wife, except for unchastity, and marries another, commits adultery; and he who marries a divorced woman, commits adultery.”
Heb 13:4
Let marriage be held in honor among all, and let the marriage bed be undefiled; for God will judge the immoral and adulterous.
Mk 10:2-12
Rom 7:2-3
1 Cor 7:1-24
In this ministry, one experienced and well-trained, married couple meets in their own home with one engaged couple. They agree to gather for several sessions (usually five) to develop the engaged couple’s understanding of Christian Marriage and increase their awareness of each other’s values and attitudes.