Maybe the link is unaccessible but I copied out the phrases
below. Kindly explain the plurality in it?
And God said, 'Let Us make man in Our image, after Our likeness;
and let them have dominion over the fish of the sea, over the fowl
of the air, and over the cattle, over all the earth and over every
creeping thing that creeps on the earth.'" Genesis 1:26
"The LORD God said, 'Behold, the man has become like one of US, to
know good and evil. And now, lest he put out his hand and take also
of the tree of life, and eat, and live forever'" Genesis 3:22
"Come, let US go down and there confuse their language, that they
may not understand one another's speech." Genesis 11:7
For ppl keen to know why there are so many languages it is not
supposed to happen look at below
"And the LORD said: They are one (echad) people, and they have all
one language." Genesis 11:6
So the only reason is like Genesis 11:7 about the Tower of Baal and
hence got a lot of language and a lot of different color skin ppl
after that.
For ppl who wanna ask Christain question I have learned smart I
study their verses and ask them comment on it cuz it is a more
direct way 
