Divorce is never commanded in the scriptures but allowed in two instances:
1- For sexual immoraity Matt. 5:31-31, 19:1-11; Mark. 10:1-10; Luke 16:18.
2- If an unbeliving spouse departs the believer 1 Cor. 7:15. While divorce isn't explicitly mentioned here. It is fair to assume that divorce could be a possibility.
Remarriage is never commanded in the scriptures but allowed in two instances:
1- If sexual immorality broke the first marriage, then only the innocent spouse is permitted to remarry Matt. 5:31-31, 19:1-11; Mark. 10:1-10; Luke 16:18. Remarrriage for the innocent spouse is not clearly taught here but implied. Some Bible commantators and scholars don't see that the biblical text in the previous refrences permit for remarriage for the innocent spouse. In the Christian and Missionary Alliance we disagree with that interpretation.
2- In the case of the death of one of the spouses Romans 7:2.
In any case of abuse, seperation (not divoce) is recommended. The believer is expected to pray and seek the Lord till the abusive spouse repent and the marriage can be saved.
For further study, please read: