# For otherwise

"For if your presence does not go with us"

# how will it be known

"how will people know" 

# how will it be known ... people?

"no one will know ... people."

# I and your people will be distinct

"everyone will know that I and your people are different." The words "be distinct" translate the same Hebrew word as "set ... apart" in Exodus 8:22, so if your language has one word or phrase for both ideas, you may want to use it there and here.

# Will it not only be if

"Will it not only be known if"