155. Is it OK for a divorced woman to remarry?

Yes, it's always permited.

When a man hath taken a wife, and married her, and it come to pass that she find no favour in his eyes, because he hath found some uncleanness in her: then let him write her a bill of divorcement, and give it in her hand, and send her out of his house. And when she is departed out of his house, she may go and be another man's wife. Deuteronomy 24:1-2

Except when the divorced woman remarries the man who divorced her. (That's an abomination.)

And if the latter husband hate her, and write her a bill of divorcement, and giveth it in her hand, and sendeth her out of his house; or if the latter husband die, which took her to be his wife; Her former husband, which sent her away, may not take her again to be his wife, after that she is defiled; for that is abomination before the LORD. Deuteronomy 24:1-2

No, it is never permitted.

Whosoever putteth away his wife, and marrieth another, committeth adultery: and whosoever marrieth her that is put away from her husband committeth adultery. Luke 16:18

Christian Responses
Christ Created

Other questions about marriage:
Is it wrong to have sex outside of marriage?
If a husband believes, is his wife saved also?
Is marriage a good thing?
Is divorce ever permissible?
Is polygamy OK?

And morals:
Is dancing a sin?
Is magic OK?
Is it wrong to steal?
Is it wrong to lie?
Is it OK to make images?
Is it OK to covet?
Should we hate other people?
To kill or not to kill.
To judge or not to judge.
Is it OK for men to have long hair?
How should nonbelievers be treated?
How should homosexuals be treated?
Is it OK to call someone a fool?
Should we let others see our good works?