Order of Service
In outline it is:-
Entrance music - The Bridal March or alternative
Welcome and Opening Prayer
Hymn
The Marriage
Reading(s)
Address
Hymn
Prayers
Hymn
Signing of Registers
Exit music - The Wedding March or alternative
It is possible to make some variations to the order of service such as more of fewer hymns, more than two readings, but these must be discussed and agreed with the vicar or priest conducting your marriage.
The full text of the Common Worship Marriage service including an order for blessing following a civil marriage service is available as a portable document file opening in a separate window CW Marriage Texts (click).
Readings
Here are some suggestions:-
Song of Solomon Chapter 2 verses 10-13; 8.6,7. Love Poem.
Matthew Chapter 7 verses 21, 24-end. House built on rock.
John Chapter 2 verses 1-11. Wedding at Cana.
John Chapter 15 verses 9-17. Abide in my love.
1st Corinthians Chapter 13. Love will never come to an end.