This song is about finding one's forever love and committing to be with them eternally. The singer recalls how they knew upon first meeting their partner that it was forever. They see the promise of forever in their partner's eyes and feel it when held by them. The chorus declares their love and belief that their forever is this person, as God gave them their endless forever. The bridge remembers the beginning of their love and how their partner was right that the love would last forever. The coda reiterates the singer's commitment to lasting forever with this person as they are each other's forever.