Marriage and Family
We believe that marriage and family are institutions ordained by the Lord God Himself from the very beginning of human history and these are sacred institutions. Marriage is between one man and one woman. Any other definition of marriage is contrary to the clear teachings of the Holy Bible and hence against the expressed will of God. Genesis 1:27-28; 2:20b-24; I Corinthians 7:2; Hebrews 13:4.
Grudem Wayne, Bible
Doctrine essential teachings of the Christian Faith; Zondervan,