God does not expect perfection from us, but he also does expect us to make every effort at holiness. As believers He does not expect us to attain holiness on our own, which is why we have the Holy Spirit living in us. 2 Peter 3:14 says, So then, dear friends, since you are looking forward to this, make every effort to be found spotless, blameless and at peace with him. Making every effort means we do not become lazy and complacent, but eager to please Him.