Without faith, it is impossible to please God. Without a living trust in Christ as your Savior, the word of forgiveness does you no good. Without faith in Christ, the Lord's Supper will be like broken glass in your belly. For the words 'for you' require all hearts to believe. Faith trusts the Word and receives the benefits and blessings of that Word.
Faith is a living and active thing.
When we trust God's Word, things happen, lives are not the same. By faith Noah sawed and hammered away in his backyard, building an ark without a drop of water in sight as his neighbors laughed at him for being so foolish. Noah trusted the Word of God, and so he was saved in the ark by God's grace through faith for Jesus' sake. By faith Abraham left his comfortable home in Ur of the Chaldees and wandered as a stranger in a foreign country living in tents. He trusted God's Word that one day his descendants would inherit that land as their own.