**People that remarry are no more sinners than you are or anyone else.**
Not what the Bible says:
Gospel Mk 10:1-12
Jesus came into the district of Judea and across the Jordan.
Again crowds gathered around him and, as was his custom,
he again taught them.
The Pharisees approached him and asked,
“Is it lawful for a husband to divorce his wife?”
They were testing him.
He said to them in reply, “What did Moses command you?”
They replied,
“Moses permitted a husband to write a bill of divorce
and dismiss her.”
But Jesus told them,
“Because of the hardness of your hearts
he wrote you this commandment.
But from the beginning of creation, God made them male and female.
For this reason a man shall leave his father and mother
and be joined to his wife,
and the two shall become one flesh.
So they are no longer two but one flesh.
Therefore what God has joined together,
no human being must separate.”
In the house the disciples again questioned Jesus about this.
He said to them,
“Whoever divorces his wife and marries another
commits adultery against her;
and if she divorces her husband and marries another,
she commits adultery.”
Enough said there!
“Whoever divorces his wife and marries another commits adultery against her; and if she divorces her husband and marries another, she commits adultery.”
She in the first case doesn't commit adultery by re-marrying. He in the second case does not commit adultery. In Matthew he who divorces 'except on the ground of sexual immorality' makes her commit adultery and anyone who marries a divorced woman commits adultery.
So why Mark instead of Matthew?
Right adultery. Just like you or me commit adultery ever time we look at another woman with lust. Just like you or me commit murder every time we get angry with someone. It goes on and on .. It is all sin and it is a dangerous business when Pharisees play God and start judging how bad one sin is vs another.