Malachi 2:14

14 You ask why he no longer accepts them. It is because he knows you have broken your promise to the wife you married when you were young. She was your partner, and you have broken your promise to her, although you promised before God that you would be faithful to her.

Malachi 2:14 In-Context

12 May the Lord remove from the community of Israel those who did this, and never again let them participate in the offerings our nation brings to the Lord Almighty.
13 This is another thing you do. You drown the Lord's altar with tears, weeping and wailing because he no longer accepts the offerings you bring him.
14 You ask why he no longer accepts them. It is because he knows you have broken your promise to the wife you married when you were young. She was your partner, and you have broken your promise to her, although you promised before God that you would be faithful to her.
15 Didn't God make you one body and spirit with her? What was his purpose in this? It was that you should have children who are truly God's people. So make sure that none of you breaks his promise to his wife.
16 "I hate divorce," says the Lord God of Israel. "I hate it when one of you does such a cruel thing to his wife. Make sure that you do not break your promise to be faithful to your wife."
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.