Genesis 2:24
Therefore shall a man leave his father and his mother, and shall join to his wife: and they shall be one flesh.
Torrey's Topical Textbook—AKJV

Mark 10:6-8
But from the beginning of the creation God made them male and female.
Torrey's Topical Textbook—AKJV

1 Corinthians 7:2-4
Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband.
Torrey's Topical Textbook—AKJV