Love is given in one word in English language, but there is 4 words in the Greek language that express love:
1. Agápe (God’s Love)
2. Éros (Romantic Love)
3. Philia (Friendship Love)
4. Storge (Parental Love)
Do you realize that Marriage is the only foundation that can bring these 4 loves together and if you take Agape love out of the marriage, the true meaning of eros or romance is gone and Romantic Love becomes redefined to lust.
And to us, the bible gives and shows the sacredness of marriage, as Christ is to the church (the bridegroom and the bride). And in that sacredness, the beauty in the perfect relationship between a man and a woman, as it is shown in the singular commitment of the marital vow, I do, and I will.
So any departure from the beauty and sacredness of the 4 unions of love which is the biblical view of what it really means to be married, it is never right and not acceptable in the sight of God because this is the sacred union between a man and woman and in a pro creative act, it’s sacredness is very clear.