Just say a simple, 'Yes, I will,' or 'No, I won't.' Your word is enough. To strengthen your promise with a vow shows that something is wrong. "
References for Matthew 5:37
"You have heard that the law of Moses says, 'If an eye is injured, injure the eye of the person who did it. If a tooth gets knocked out, knock out the tooth of the person who did it.'
References for Matthew 5:38
But I say, don't resist an evil person! If you are slapped on the right cheek, turn the other, too.
If you are ordered to court and your shirt is taken from you, give your coat, too.
If a soldier demands that you carry his gear for a mile, carry it two miles.
References for Matthew 5:41
Give to those who ask, and don't turn away from those who want to borrow."
"You have heard that the law of Moses says, 'Love your neighbor' and hate your enemy.
References for Matthew 5:43
But I say, love your enemies! Pray for those who persecute you!
References for Matthew 5:44
In that way, you will be acting as true children of your Father in heaven. For he gives his sunlight to both the evil and the good, and he sends rain on the just and on the unjust, too.
If you love only those who love you, what good is that? Even corrupt tax collectors do that much.
If you are kind only to your friends, how are you different from anyone else? Even pagans do that.
References for Matthew 5:47