I believe it is about God having a plan to be a Father to His Children (Christians). I think when he says "Only wear your clothes; I wear them too; I wear your shoes; and your jacket too" it refers to God coming down in human form as Christ (John 1:1, 14). "I've made amends; we should be father and son" means that because of the crucifixion and resurrection of Christ, God made amends (in the sense that we are counted righteous in Christ by faith in Christ) so that we can come to God with full access. Therefore for Christians, He's our Father, and we are His Sons.
That's how I've interpreted it because Sufjan's lyrics often have a Christian undertone and meaning.
I believe it is about God having a plan to be a Father to His Children (Christians). I think when he says "Only wear your clothes; I wear them too; I wear your shoes; and your jacket too" it refers to God coming down in human form as Christ (John 1:1, 14). "I've made amends; we should be father and son" means that because of the crucifixion and resurrection of Christ, God made amends (in the sense that we are counted righteous in Christ by faith in Christ) so that we can come to God with full access. Therefore for Christians, He's our Father, and we are His Sons.
That's how I've interpreted it because Sufjan's lyrics often have a Christian undertone and meaning.
For His Glory, Pemberley Tea Psalm 16:11