The song "Stay (with Justin Bieber)" is about understanding that a relationship may not be perfect, but is still worth fighting for. In the chorus, the singer is asking for the other person to stay in the relationship despite their faults and mistakes, as they cannot find anyone else who is as good as them. The singer also acknowledges their own shortcomings and expresses the desire to change for the partner. In the verse, Justin Bieber joins and emphasizes the importance of being honest and not leaving their partner behind in tough times. The song ultimately sends a message of appreciation and commitment to the other person, despite all odds.