God expects us to take our promises very seriously. It's in the Bible, Leviticus 5:4, TLB. "If anyone makes a rash vow, whether the vow is good or bad, when he realizes what a foolish vow he has taken, he is guilty."
God takes our promises seriously and will hold us to them. It's in the Bible, Proverbs 20:25, TLB. "It is foolish and rash to make a promise to the Lord before counting the cost."
Jesus emphasized the importance of keeping our word. It's in the Bible, Matthew 5:37, TLB. "Say just a simple 'Yes, I will or No, I wont.' Your word is enough. To strengthen your promise with a vow shows that something is wrong."
Vows made to God must be taken seriously and fulfilled promptly. It's in the Bible, Ecclesiastes 5:4-5, TLB. "So when you talk to God and vow to Him that you will do something, don't delay in doing it, for God has no pleasure in fools. Keep your promise to Him. It is far better not to say you'll do something than to say you will and then not do it."
The marriage vow is permanent. It's in the Bible, Matthew 19:5-6, TLB. "And that a man should leave his father and mother, and be forever united to his wife. The two shall become one—no longer two, but one! And no man may divorce what God has joined together."