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The mishna in Yoma (60a) demands that the proper sequence of ceremonies be maintained during the avodat Yom Ha-kippurim (Yom Kippur service in the Temple). The subsequent gemara records a dispute between Rabbi Nechemia and Rabbi Yehuda surrounding the scope of this requirement. Was it stated regarding the unique Yom Kippur ceremonies performed with the bigdei lavan (special linen clothing worn on Yom Kippur in place of the standard gold clothing), or does it apply only to those unique avodot (services) performed in the kodesh ha-kodashim (holy of holies)? For example, would the sequence requirement apply to the lottery process, viduy (confession) recitation, or blood-sprinkling on the parokhet (curtain) - ceremonies performed outside the kodesh ha-kodashim but with linen clothing?
The gemara applies the sequence requirement to collecting ketoret (incense) and sacrificing the par (the bull brouht as the kohen gadol’s sin-offering), even though these ceremonies were performed outside the kodesh ha-kodashim, since they serve as preludes to avodot performed inside(“tzorech penim ki-penim dami”).