Psalm 90

Moses is given credit for writing this psalm. But I wonder when he wrote it. Scripture indicates that he believed in God all of his life. The limit of years in verse 10 could indicate that he is not much older than 80. The use of God's divine name in verses 13 and 17 indicate that he wrote it after he met God at the bush. There is no mention of a parted Red sea, manna, or tabernacle.  The terror of verse 7 could be a reference to the effects of one of the plagues on Egypt.  All of these hints could place the psalm as being penned and/or sang during the night of the Passover in Egypt. That's just my thoughts.
Stuart