Ephesians 1:3-4 says, "Blessed be the God and Father of our Lord Jesus Christ, who has blessed us with every spiritual blessing in the heavenly places in Christ, just as He chose us in Him before the foundation of the world, that we would be holy and blameless before Him in love."
This passage tells us some soul-rocking truths that, if grasped, are life changing. Intellectual perception of them is one thing, but to have these truths sink into your heart is when they will become truly beneficial in a practical way.
We were chosen to be holy and blameless before God long before this world were ever created. Holy and blameless. We were not chosen to be justified despite all of our sins, only to be left to live with the filthiness of sin. We were chosen to be holy. Chosen to be blameless before God. The phrase 'before Him' is one which describes our lives currently. We are living before Him now. We are to be holy and blameless before Him. In our striving against sin, we can think on this passage and know that the very striving is what we were chosen for. To be holy and blameless before Him. We are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them. (Ephesians 2:10)