"The First In Line" by The Everly Brothers is a heartfelt love song about a person who is willing to be there for someone they care about, no matter the circumstances. The lyrics suggest that the person the song is addressed to has found a new love, and although it may be strong, the speaker wants to be the first person in line if that love ever falters or changes. They express their willingness to give their heart completely, with a love that is pure and true, lasting until the end of time. The song acknowledges the possibility that the new love may not work out, and if the person ends up feeling blue or in need of someone who will treat them tenderly and kindly, the speaker hopes to be the one they turn to. Furthermore, if the person is ever set free by their new love, the speaker prays that they consider them as a potential partner. They assure that they are willing to give everything they have, demonstrating their deep desire to be with this person. Overall, "The First In Line" portrays a sense of longing, devotion, and the willingness to wait patiently for a chance to be with someone they love.