Silent Night's 2nd half of the 2nd verse has a very similar melody to U2 Bad (and some of the same lyrics), same D to A chord progression.
Bad was released the year before.
U2 Bad
https://youtu.be/l2puvI4IfG0?t=144
Silent Night (I never knew they had a music video for this one... learn something new everyday)
https://youtu.be/8HjC6T2HDI4?t=109