This piece beautifully expresses the Exchange of our righteousness
for the Pure and Holy righteousness of Jesus Christ.

But we are all as an unclean thing and all of our righteousnesses are as filthy rags...Isaiah 64:6 KJV

He made Him who knew no sin to be sin on our behalf, so that we might become
the righteousness of God in Him...2 Cor 5:21 NASB