When I look at scripture, what I don't see is the Lord giving the Believer permission to remarry after a divorce.
Genesis 2:24 – “Therefore a man shall leave his father and mother and be joined to his wife, and they shall become one flesh.”
Matthew 5:31-32 – “It has been said, ‘Anyone who divorces his wife must give her a certificate of divorce.’ But I tell you that anyone who divorces his wife, except for sexual immorality, makes her the victim of adultery, and anyone who marries a divorced woman commits adultery.”
1 Corinthians 7:10-11 – “To the married I give this command (not I, but the Lord): A wife must not separate from her husband. But if she does, she must remain unmarried or else be reconciled to her husband. And a husband must not divorce his wife.”
1 Corinthians 7:12-15 – “To the rest I say this (I, not the Lord): If any brother has a wife who is not a believer and she is willing to live with him, he must not divorce her. And if a woman has a husband who is not a believer and he is willing to live with her, she must not divorce him. For the unbelieving husband has been sanctified through his wife, and the unbelieving wife has been sanctified through her believing husband. Otherwise your children would be unclean, but as it is, they are holy. But if the unbeliever leaves, let it be so; the brother or the sister is not bound in such circumstances; God has called us to live in peace. How do you know, wife, whether you will save your husband? Or how do you know, husband, whether you will save your wife?”
Luke 16:18 – “Anyone who divorces his wife and marries another woman commits adultery, and the man who marries a divorced woman commits adultery.”
Romans 7:2-3 – “For example, by law a married woman is bound to her husband as long as he is alive, but if her husband dies, she is released from the law that binds her to him. So then, if she has sexual relations with another man while her husband is still alive, she is called an adulteress. But if her husband dies, she is released from that law and is not an adulteress if she marries another man.”
Luke 18:29-30 – “Truly I tell you, no one who has left home or wife or brothers or parents or children for the sake of the kingdom of God will fail to receive many times as much in this age and, in the age to come, eternal life.” This passage speaks to the idea of sacrifice for the kingdom of God. While not directly related to divorce and remarriage, it highlights the importance of prioritizing God’s kingdom over personal relationships. Those who face hardship in relationships, including the pain of divorce, may find comfort in the rewards that God promises for their faithfulness.
The Christian and non-Christians divorce rates are the same.
Maybe nominally true, but it's lower among Christians who regularly attend church. I kinda hate using church attendance as a barometer for which Christians are real or not, but it may be the best metric we have.
When I look at scripture, what I don't see is the Lord giving the Believer permission to remarry after a divorce.
I don't know. It's possible to look at 1 Corinthians 7:15-16 (which you posted below)'s permission to count yourself as lawfully divorced as permission to remarry. One could argue, though, that even when we go with Paul's version, a condition is that the spouse who left is an unbeliever. Perhaps, and I mean "perhaps", the unbeliever distinction is how Paul's version of being lawfully divorced (which I would take as permission to marry someone else) seems to contradict Jesus' version of it being a sin to marry a divorced woman. Perhaps Jesus implied divorce among believers means unlawful to remarry (unless there was adultery).
At least, that's how I reconcile Jesus' and Paul's teachings as not being against each other, since I count them both as inerrant Scripture. If I'm right, and this perhaps is a bit too legalistic, then it's sin to divorce and remarry unless there's adultery involved and/or unless the spouse doing the divorce is an unbeliever.