the LORD (Hebrew. Jehovah. said. See note on Exodus 3:7, and p. note on Exodus 6:10.
Wherefore... ? Figure of speech Erotesis. App-6. It is also the Figure of speech Hysteresis; for no mention has been made of Moses' crying to the LORD.
go forward. This was Israel's faith. It was "by faith" in what they heard (Romans 10:1 Romans 10:7; Hebrews 11:29).