死生契阔,与子成说。执子之手,与子偕老。
Through life and death, union and separation, I made this pledge with you: holding your hand, I will grow old with you.
Plain meaningI promise to stand with you through life and grow old together.
Original context and translation note
The poem's original setting is separation in military service, which gives the promise a more difficult context than a simple wedding slogan.
English wording on Gu Ren Said is an original reading aid, not a claim that there is only one valid literary translation.