Hi
@Docbrown1985
Love the name btw.
The Bible is very clear on this matter. If you make a vow, you stick to it. And if if you make a vow to God you most certainly see it through.
There's no scripture that justifies not following a vow, other than a father/husband invalidating his daughter's/wife's vow on the day he hears it. The only scripture I know of in the NT about the matter is the Messiah teaching to not make a vow at all.
Consider Israel and the Gibeonites in Joshua 9, or Jephthah's vow in Judges 11. It would be easier for them to break these vows than keep them, but they knew the severity of breaking vows before God to be far worse. And when Israel's kings broke their vows, it didn't go well with them soon after. Finally consider Psalm 15, which describes the kind of man that will enter New Jerusalem, which includes "who keeps his word, whatever the cost".
Now, you'll probably be thinking "but what about forgiveness in Messiah? Surely by His grace I can be forgiven a vow". Yeah, possibly. But do you really want to be that guy? The one who leans on grace to break his word? That isn't saintly or holy behaviour.
Now, of course the Messiah is very gracious to us. And I don't know of your situation, heart and vow. But if He does forgive you for not keeping this vow, I would advise you to not make another vow again. For just as we want to trust in His words to us, He wants to trust our words to Him.
Therefore, from here on, let your prayers be filled with thanksgiving, praise and supplication, but no vows. If you can fulfil your vow, do it. If the vow was utterly foolish, pray and seek forgiveness with sincerity and humility and be sure to watch your words in the future.
It's not all doom and gloom though. Let's flip this for a moment. The Creator of the universe hears and respects our vows? Incredible! He could easily ignore them all, but He gives us the respect to make vows and trusts in us when we do. Simply amazing. Praise Yahweh.
Peace.