Just a quick note.  I don't have time to elaborate today.
 
Last night in my studies preparing for a Sundayschool class on the 4th Feast of Israel, I observed that Moses went up into Mt Sinai "In the third month" (Exodus 19:1).
 
We know that the death of the firstborn (Passover) was the 14th day of the 1st month.
By the middle of the second month the Israelites were between Elim and Sinai (Exodus 16:1). And now, in the 'third month' Moses goes up to receive the Law.
 
If we use 30-day months for simplicity, we have 30 minus 14, which is 16 days of the first month in which they were traveling.  We have 30 days of the second month; we're up to 45 days in route.  At that point we're into the 'third month'.
 
Did Moses go up to get the Law from God on Mt Sinai on what would later become the feast of Weeks, Shavuot or Pentecost?  That day would have fallen in the 'third month' then as it does today.
 
Then I read Exodus 19:19-20
 
        "And when the voice of the trumpet sounded long, and waxed louder and louder, Moses spake, and God answered him by a voice.  And the LORD came down upon mount Sinai, on the top of the mount: and the LORD called Moses up to the top of the mount; and Moses went up."
 
Amist the trumpet blasting, Moses heard a voice and, from a high place;
"the LORD called Moses up"
 
AND
 
"Moses went up"
 
It looked to me then, as now, a lot like the following:
 
       "After this I looked, and, behold, a door was opened in heaven: and the first voice which I heard was as it were of a trumpet talking with me; which said, Come up hither, and I will shew thee things which must be hereafter."
 
It also looked like this:
 
        "For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord."     (1st Thessalonians 4:16-17)
 
See ya in the air