The first thing you need to decide is if you are going to have a traditional wedding invitation or not. Sample text for traditional invitations.
Mom and Dad Names (hers)
Request the honor of your presence
At the marriage of their daughter
Bride’s Name
And
Groom’s name
Day of the week, date
At time (spelled out, no numbers)
Address of the Ceremony (spelled out, no numbers)
Reception will follow (if at the same location)
Side note: You can either put down honor (American English way) or honour, which is the old English spelling, both way would be correct. Formal invitations are usually printed on a heavier weight paper as well.
Invitation Etiquette Tip: Usually when you put down “request the honor of your presence” it is reserved for religious ceremonies. If you are putting down “request the pleasure of your company” it is referred to civil ceremonies. If yours or his parents are divorced and remarried, you should list the spouse on your wedding invitation as well.
Informal Invitation: “May the wind under your wings bear you where the sun sails and the moon walks. “ Less rules here, informal invitations can be as casual as the one below.
Mom and Dad Names
His mom and dad (if you would like, or if both parents are hosting)
Request the pleasure of your company
At the Wedding Celebration of their children
Bride’s Name
+
Groom’s name
Day of the week, date
Location
There are also a lot of great sources where you can find more invitation wording. I personally love Minted, Wedding Invitation Wording for inspirations. It gives you different case scenarios too, your parents hosting, his parents hosting, both parents hosting or you as a couple hosting, etc. The most important thing is to be you, don’t feel pressured to have one set of wording invitation or the other, you can mix and match to create your perfect wedding invitation.