Genuine faith in Jesus cannot be separated from love for the people Jesus redeemed. Ephesians 1:15 calls believers to a loyalty to Christ that overflows into humility, patience, truth, forgiveness, and practical care for all the saints.
Paul does not say we are chosen because we are holy. He says we are chosen to be holy. That small difference protects the gospel from moralism on one side and carelessness on the other. Grace comes first. Holiness follows.