Lyric discussion by AW3SOME 

Cover art for Existence lyrics by August Burns Red

Can anyone explain to me what he means by "It's what we know we aren't that makes us who we are?" I know it means something deep i just can't put my finger on it.

To me, it means we know we'll never match God's standard of perfection. We are sinners, we'll never be anywhere near worthy of heaven.

Lyrics from Redemption kinda relate to that. "I am just a man with a heart and sinful hands"

Or simply a process of elimination thing.

I'm pretty sure that's referring to believers in Christ. We know that we, as humans, cannot do a lot of things. We know we are imperfect, sinful, and in need of the Father's help and the salvation of Jesus. We know we aren't anything like God. We don't know everything, can't be everywhere, and are very far from perfectly loving like the Lord. When we acknowledge that, put ourselves in a place of surrender, and let the Holy Spirit guide us to be more like Jesus, that makes us who we are as believers.

In my opinion, that's really encouraging,...