This is from Isaiah 7:14 where Christians claim that the person who is prophecied here is Jesus and Jesus will be God with us. Looking at the text of Isaiah 7:14, this cannot be true as Isaiah was talking to King Ahaz. The young maiden is also known here as the definite article "The" is used. The Immanuel text can be read as "God is with us". However since the word implies an imperfect, we can also translate it as "God is with Him".