Throughout Scripture, God uses marriage as an analogy of His love for us. God created us for friendship with Him. His plan is for us to share in His divine life for all eternity. Everything that God created is good; it was created out of love. God created man and woman, instituting marriage as a sacrament to bless them. Through marriage, He commanded them to be fruitful and fill the earth.
One of His creatures, an angel, rebelled out of envy of us. Through “the devil’s envy death entered the world” (Wisdom 2:24). Because the devil couldn’t defeat God, he went to battle with the creatures that God loved most, human beings created in His image and likeness.