Ephesians 1:4 even as he chose us in him before the foundation of the world, that we should be holy and blameless before him. In love 5 for adoption to himself as sons through Jesus Christ, according to the purpose of his will,
When we were NOTHING, God favored His elect. Since we were NOTHING, there was nothing in us for God to show favoritism to. Since God is immutable, there is nothing we can do to change is attitude towards us. God favors His works, not ours and He favored us eternally.
Aside: Since our "election" is an eternal selection a before/after description of election is not applicable.