#exodus 40 says Moses assembled the Tabernacle by himself, but tradition says he had divine help. The walls and tent were too heavy so he asked God what to do. God said, "Do or do not. There is no try."
Kidding a little. God said "You start and I'll give a push." Like a child helping his father frame a house. Like the parting of the Jordan. We step out in #faith and God does the heavy lifting.
In all likelihood, Moses had lots of human help, but the text is worded this way for a reason.