And, indeed, those who are true Christians and esteem the Sacrament precious and holy will urge and impel themselves unto it. Yet that the simple-minded and the weak who also would like to be Christians be the more incited to consider the cause and need which ought to impel them, we will treat somewhat of this point. For as in other matters pertaining to faith, love, and patience, it is not enough to teach and instruct only, but there is need also of daily exhortation, so here also there is need of continuing to preach that men may not become weary and disgusted, since we know and feel how the devil always opposes this and every Christian exercise, and drives and deters therefrom as much as he can. And we have, in the first place, the clear text in the very words of Christ: Do this in remembrance of Me. These are bidding and commanding words by which all who would be Christians are enjoined to partake of this Sacrament. Therefore, whoever would be a disciple of Christ, with whom He here speaks, must also consider and observe this, not from compulsion, as being forced by men, but in obedience to the Lord Jesus Christ, and to please Him. However, if you say: But the words are added, As oft as ye do it; there He compels no one, but leaves it to our free choice, answer: That is true, yet it is not written that we should never do so. Yea, just because He speaks the words, As oft as ye do it, it is nevertheless implied that we should do it often; and it is added for the reason that He wishes to have the Sacrament free, not limited to special times, like the Passover of the Jews, which they were obliged to eat only once a year, and that just upon the fourteenth day of the first full moon in the evening, and which they must not vary a day. As if He would say by these words: I institute a Passover or Supper for you which you shall enjoy not only once a year, just upon this evening, but often, when and where you will, according to every one's opportunity and necessity, bound to no place or appointed time; although the Pope afterwards perverted it, and again made a Jewish feast of it. Thus, you perceive, it is not left free in the sense that we may despise it. For that I call despising it if one allow so long a time to elapse and with nothing to hinder him yet never feels a desire for it. If you wish such liberty, you may just as well have the liberty to be no Christian, and neither have to believe nor pray; for the one is just as much the command of Christ as the other. But if you wish to be a Christian, you must from time to time render satisfaction and obedience to this commandment. For this commandment ought ever to move you to examine yourself and to think: See, what sort of a Christian I am! If I were one, I would certainly have some little longing for that which my Lord has commanded [me] to do.