Oath

An Oath is a vow or promise made strongly by a practitioner, one that cannot be broken without dire consequences. Different from a simply lie costing the practitioner a bit of power, breaking an oath causes a huge backlash against the one who does it and can possibly lead to the practitioner being Forsworn.

Known Oaths

Arc 1

In Bonds 1.4 Laird Behaim asks Blake to leave Hillsglade House for a walk to talk with him about his new situation. In order to reassure Blake that he isn't tricking him in some way he promises that he will provide protection while Blake is in his company, and that he will return him to the house unharmed provided it is in his ability to do so. He also promises to smooth over legal issues that has arisen over the murder of Molly Walker - "I’ll make this as stress free for you as I can. Nobody will enter the house, if I can help it, which I can. I promise you this."
In Bonds 1.x Rose Thorburn Senior writes that she swore an oath during an argument with her father to never make her children go through the struggles of the life of a practioner - "I swore I wouldn’t ever make my children go through this. I would let them lead lives untouched by all of this."

Arc 2

In Damages 2.3 Rose promises the ghost June Burlison that if she agrees to be bound then Blake will keep her warm to the best of his ability. “If you agree, I guarantee you my partner in the circle right there will keep you warm as best as he can.”
In Damages 2.4 Ms. Lewis promises that should she or any of her partners be going to maneuver Blake into a corner to force him into their service then they will look him in the eye and explicitly state exactly what they are doing. "We’ll tell you before we maneuver you into a corner...I or one of my partners will look one of you in the eyes and inform you exactly what we’re doing, when it comes up.”