Exodus 24:18

18Moses entered the cloud and went up on the mountain. And Moses awas on the mountain forty days and forty nights.

Exodus 29:38-42

38“Now this is what you shall offer on the altar: btwo lambs a year old cday by day regularly. 39One lamb you shall offer din the morning, and the other lamb you shall offer eat twilight. 40And with the first lamb a tenth measure
Possibly an ephah (about 3/5 bushel or 22 liters)
of fine flour mingled with a fourth of a hin
A  hin was about 4 quarts or 3.5 liters
of beaten oil, and a fourth of a hin of wine for a drink offering.
41The other lamb you shall offer hat twilight, and shall offer with it a grain offering and its drink offering, as iin the morning, for a jpleasing aroma, a food offering to the Lord. 42It shall be a kregular burnt offering throughout your generations at the entrance of the tent of meeting before the Lord, lwhere I will meet with you, to speak to you there.

Exodus 31:18

18And he gave to Moses, when he had finished speaking with him on Mount Sinai, the mtwo tablets of the testimony, tablets of stone, written with nthe finger of God.

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