Do Not Take God’s Name in Vain
[5:89] GOD does not hold you responsible for the mere utterance of oaths; He holds you responsible for your actual intentions. If you violate an oath, you shall atone by feeding ten poor people from the same food you offer to your own family, or clothing them, or by freeing a slave. If you cannot afford this, then you shall fast three days. This is the atonement for violating the oaths that you swore to keep. You shall fulfill your oaths. GOD thus explains His revelations to you, that you may be appreciative.
God forgives us if we didn’t have the intention. Example Moses killed the person. Small distractions in prayer are counted for too, make sure we have right intentions for prayer too.
Why People Suck at Keeping Promises | Alex Sheen | TEDxSDSU
https://www.youtube.com/watch?v=Iq5BcrBLzMI
Quran Talk Blog 