Re-marriages while the first spouse is alive are acts of adultery.
Mark 10:11-12 (New King James Version)
11 So He said to them, “Whoever divorces his wife and marries another commits adultery against her. 12 And if a woman divorces her husband and marries another, she commits adultery.”
Obviously God will not forgive a sin that is continuing.What He will do however is condemn not only those living in adultery but also any minister who arranges for this sin.