"And I say to you, whoever divorces his wife, except for immorality[1], and marries another woman commits adultery" (Matthew 19:9).

"but I say to you that everyone who divorces his wife, except for the cause of unchastity[2], makes her commit adultery[3]; and whoever marries a divorced woman commits adultery[4]" (Matthew 5:32).

For the married woman is bound by law to her husband while he is living[5]; but if her husband dies, she is released from the law concerning the husband. So then if, while her husband is living, she is joined to another man, she shall be called an adulteress; but if her husband dies, she is free from the law, so that she is not an adulteress, though she is joined to another man" (Rom. 7:2,3).

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[1] The "immorality" refers to "fornication" -- a broad term that would include adultery, homosexual acts, lesbian acts, and bestiality. This is the ONLY scriptural reason for divorce, and it can also be noted that divorce on this ground is an option for ONLY the innocent party in putting away the guilty.

[2] The "unchastity" is also referring to "fornication," as mentioned in the first footnote.

[3] Not only is it wrong for one to divorce a spouse when fornication is not involved, but the one doing so causes the put-away spouse to "commit adultery"; no doubt, this is because sexual "obligations" (1 Cor. 7:3-5) are no longer being fulfilled due to the severed marriage.

[4] The reason why even one who had never been married before would become an adulterer if he would marry a divorced woman is because she is bound by God's law to her first husband (Rom. 7:2,3) -- unless she had put away her first husband because of adultery.

[5] Death severs the marriage bond; it and the innocent spouse putting away the guilty for adultery are the only two reasons for one having the right to marry again.