gevurah shebbe chesed
The middah (character trait) of gevurah may be expressed as a measure of strictness. Therefore, one way of conceiving of gevurah within chesed could have to do with applying a measure of strictness to the quality of kindness. Placing a limit on our kindness, in response to the awareness that not every situation is best suited to respond in kindness involves a dash of wisdom.
Therefore, chesed may require the use of discernment, in order to ascertain how much kindness would be appropriate to the situation. Boundaries are essential to the maintenance of identity. Where do I begin and the other person starts? This question must be regulated in real time by each and every individual. Being kind to others, without standing up for oneself simply amounts to people pleasing, at the expense of oneself.
There must be a healthy balance between chesed and gevurah, and sometimes the strictness of gevurah is necessary to restore a sense of self and integrity.
The Tree of Life 