Scripture:
1Co 5:7-8 Purge out therefore the old leaven, that ye may be a new lump, as ye are unleavened. For even Christ our passover is sacrificed for us: Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.
Comment:
The remnant of the “old” (Eph_4:22-24) heathenish and natural corruption. The image is taken from the extreme care of the Jews in searching every corner of their houses, and “purging out” every particle of leaven from the time of killing the lamb before the Passover (Deu_16:3, Deu_16:4). So Christians are continually to search and purify their hearts (Psa_139:23, Psa_139:24). (from Jamieson, Fausset, Brown Commentary)
Opinion:
The End of the Jewish Religion was at the Cross, where Jesus declared the Mosaic Law Covenant was "Finished!" (perfect tense = once done, with lasting consequences). The Jewish religion is now dead, because it was simply a pattern pointing toward the Passion of the Lamb of Calvary, which previous Mosaic law of sacrifices (that can never take away sin; Heb. 10:4) is never to be revived; and is replaced by the Crucifixion of Jesus, then fulfilling His role as Christ. By this Jesus literally and figuratively became our Pascha/Seder, and His act of atonement is now remembered (not reinstituted) at the Breaking of The Bread. (from imardmd1)
*********
And, BTW, what does 'regularly' mean?
Scripture:
Act 2:42 And they continued stedfastly in the apostles' doctrine and fellowship, and in breaking of bread, and in prayers.
Definitions:
proskartereō = continually with oft occurence and strong emphasis)
pros-kar-ter-eh'-o
From G4314 and G2594; to be earnest towards, that is, (to a thing) to persevere, be constantly diligent, or (in a place) to attend assiduously all the exercises, or (to a person) to adhere closely to (as a servitor): - attend (give self) continually (upon), continue (in, instant in, with), wait on (continually).
koinōnia
= for which the English word is "communion"
koy-nohn-ee'-ah
From G2844; partnership, that is, (literally) participation, or (social) intercourse, or (pecuniary) benefaction: - (to) communicate (-ation), communion, (contri-), distribution, fellowship. (These from Thayer's Greek-English Lexicon)
Opinion:
From the very beginning of the formation of the prototype Church of Jerusalem, the normative often-rehearsed symbolism of Jesus' sacrificial death was instituted by the Apostles' doctrinal promulgation and conduct of His Prime Ordinance, "This do (present tense, active voice, imperative mode = I order you to persistently keep on rehearsing this symbolic act of personally internalizing, using the ordinary wine and bread--unchanged in any ways and digestible--of this Passover performed according to the Galilean tradition of holding the meal eaten the night before the day of the slaughter of the paschal lamb, rather than that of the Judean/Sadducean tradition, as a mnemonic vehicle to keep fresh, through the coming ages, the memory of an event in which My actual body and blood are yet to be surrendered for an abuse to fend off the penalty for sin which each of you richly deserve, but which you need not suffer if you cling to me) in remembrance of Me." (from imardmd1)
Scripture:
1Co 11:26 For as often as ye eat this bread, and drink this cup, ye do shew the Lord's death till he come.
Comment:
It is moreover hinted here, concerning this ordinance, [1.] That it should be frequent: As often as you eat this bread, etc. Our bodily meals return often; we cannot maintain life and health without this. And it is fit that this spiritual diet should be taken often too! The ancient churches celebrated this ordinance every Lord's day, if not every day when they assembled for worship.
[2.] That it must be perpetual. It is to be celebrated till the Lord shall come; till he shall come the second time, without sin, for the salvation of those that believe, and to judge the world. This is our warrant for keeping this feast. It was our Lord's will that we should thus celebrate the memorials of his death and passion, till he come in his own glory, and the Father's glory, with his holy angels, and put an end to the present state of things, and his own mediatorial administration, by passing the final sentence. Note, The Lord's supper is not a temporary, but a standing and perpetual ordinance.
(from Matthew Henry's Commentary on the whole Bible)
Opinion:
The spiritual health of the local church, and each of its constituents, depends on the often rehearsal of the "Last Supper," with a clear, simple explanation of its significance to reinforce the continual necessity of each believer to examine yourselves (both each individual of self and others, as well as the state of mind and operation of the whole local church), whether ye be in the faith; prove your own selves. Know ye not your own selves, how that Jesus Christ is in you, except=unless ye be reprobates? (from 2 Cor. 13:5)
Therefore, one's slate with the Lord through examination, confession, and absolution from The Father ought to be cleaned before even thinking of participating in the Breaking of Bread. (from imardmd1)
*********
This could be discussed at some further length, but I hope this will somewhat give a basis for you to answer your own question which comes, I presume, from a child-like ignorance and not from a tempter's sarcasm.
And that is why I asked the question about which you are inquiring.
With respect and cautionary advice --
Thanks for a broad answer, but I should have indicated just how often is regularly?
Catholics do it every time the church doors open, Protestants do it at varying rates.
Jews did it once a year, with prescribed dates and rituals.