Musar к Диврей ха-ямим Б 6:41

Let us now return to the way the Tabernacle corresponded to the act of creation. We know from Avot 5,1 that G–d created the universe with 10 directives. The deeper meaning of the ten directives is well known. When the Tabernacle was constructed we also find the number 10 prominent both when describing part of the walls as well as when describing the coverings forming the ceiling of the Tabernacle. Exodus 26,1 commences with the instruction to make the Tabernacle of ten strips of cloth. Similarly each of the boards used for the walls was to be ten cubits high. The Holy Ark was ten handbreadths high, including one cubit for the thickness of its lid. This may be the reason that in the reference to the Holy Ark in Psalms 132,8: אתה וארון עוזיך the word עוזך is spelled with the extra letter י. [Our texts do not have the extra letter י, neither here nor in Chronicles II 6,41. Ed.] The Talmud Yuma 21 states that the site on which the Holy Ark stood was not included in the measurements of the Temple or Tabernacle. This too is an allusion to the concealed nature of the Ineffable Name of G–d which was present within the Holy of Holies between the wings of the cherubs on the lid of the altar. We allude to this in the קדושה prayer when we recite: ברוך ה' ממקומו, "Blessed the glory of the Lord from its abode." [its invisible site Ed.] The table was also 9 handbreadths high, above which was a golden frame 1 handbreadth high. So here too the number ten was prominent. The candlestick with its seven arms and a knob, cup, and flower on each arm again featured the number ten. Here too we find that the Torah refers to: תיעשה המנורה "the candlestick shall be constructed" (Exodus 26,31) the word תיעשה being unaccountably spelled with an extra letter י. The golden altar was twelve handbreadths high, corresponding to the twelve permutations in which the Ineffable Name can be spelled. The copper altar was square, five cubits long and five cubits deep. This corresponded to the number five mentioned in the ספר היצירה. Its height, however, was ten cubits.