Here's a ceremony I wrote with an older couple

One of my first official marriages was for an older couple. As you'll see, each one chose vows that expressed their individual feelings. It was a touching ceremony which included children, grandchildren, friends and caretakers, and their words brought everyone in the room to tears.....

Officiant- Who brings this woman to be married? (Response from Bride's Escort - I Do)

Officiant – On behalf of Bride & Groom, it is an honor for me to welcome you. Marriage is the promise between two people, who love each other, to share their desires, longings, dreams, and memories, their joys and sorrows. We are here tonight to encourage and support Bride and Groom and share in the joy they are feeling as they pledge their love and commitment to one other. We rejoice and celebrate the ways in which life has led them to each other and to the place where they now stand.
 Groom and Bride, before you make your vows, I ask if you come here freely and without reservation to marry each other?

Bride & Groom Face Each Other and clasp hands.

Vows – I now invite Bride and Groom to speak their vows
 Groom:
Bride, I take you this day as my wife, because you are my beloved,
the one I have chosen to journey with through my remaining days.
You are my princess, my companion, my lover and my friend,
And I promise that wherever our journey leads and whatever its outcome,
I will love you, cherish you and be faithful to you,
As God is my witness.Groom places the ring on Bride’s finger.

Bride:
In the presence of God, our children and grandchildren,
I take you, Groom, to be my wedded husband.
I promise to love you, honor you and cherish you,
In sickness and in health, in good times and in bad,
So long as we both shall live
May the Lord bless us with many happy years
And may the peace of Christ live always
in our hearts and in our home as we become one.Officiant – When two people pledge their love for each other in marriage, they create a spirit unique unto themselves which binds them closer than any spoken or written words. Groom & Bride, you have given and pledged your promises to each other, and declared your everlasting love and by the power vested in me by the Commonwealth of Massachusetts, it is my honor to pronounce that you are husband and wife. Groom, you may kiss your bride! (Both say I/We do)