What is matrimony? The state or ceremony of being married; marriage.
Where is a matrimony held? " let matrimony be held in honor among all, and let the marriage bed be underfiled, for God will judge the sexually immoral and adulterous ( Hebrews 13:4)
Who leads the matrimony? Priest, pastor, bishop , grand musfti and other etc religious leaders.
What does God say about matrimonies? Genesis 2:24 "therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh."