Lyric discussion by incubusfanatic 

Cover art for As I Am lyrics by Justin Bieber

I think Justin is trying to convey that he has made a good amount of mistakes in his past, and he tells lies because the truth would hurt very badly. This can be in a relationship with a lover or a family member. You want those that you love and want to be around to stick around even after all your mistakes and mishaps that have happened in the past.