Often times, very devout Christians will come to the Lord's table with trepidation and fear of taking it, this, when they have had a difficult week, struggling with sin, Satan and the world. Thus, they may think, since I have had such a difficult time this week, I should refrain. But if we are in Christ, and partakers of the New Covenant, we are not coming in an unworthy manner, but we are worthy, and that, because of Christ and His blood, which was shed for us. The one caveat, if we are harboring sin, or our hearts are cold and we are in a bad place, perhaps we should refrain until we have made our hearts right.