#the man

Possible meanings are 1) God was referring to one human, the man, or 2) God was referring to humans in general, which at this point was the man and his wife. Even if God was speaking about one person, what he said applied to both of them.

#like one of us

The pronoun "us" is plural. See how you translated "Let us make" in [[:en:bible:notes:gen:01:26|1:26]]. "like us."

#knowing good and evil

See how you translated "knowledge of good and evil" in [[:en:bible:notes:gen:02:09|2:9]].

#he must not be allowed

"I will not allow him"

#tree of life

Translate this as in [[:en:bible:notes:gen:02:07|2:9]].

#the ground from which he had been taken

The man was made out of ground. This does not refer to the particular plot of land that the man was taken from.

#So God drove the man out of the garden

"God forced the man to leave the garden." This refers to the event in [[:en:bible:notes:gen:03:22|3:23]], where it says "Yahweh God sent him out of the garden of Eden." God did not send the man out a second time.

#to cultivate

Translate this as in [[:en:bible:notes:gen:02:04|2:5]].

#in order to guard the way to the tree of life

"in order to stop people from going to the tree of life"

#flaming sword

Possible meanings are 1) a sword that had flames coming from it or 2) a fire that was shaped like a sword. Languages that do not have swords could use another weapon such as a spear or arrow.