"Give, but give until it hurts" is a quote attributed to Mother Teresa and became a common slogan in the last century. The slogan was used to motivate people to donate to a cause and donate enough that the donor actually notices the amount given, to the point they must sacrifice something. God realizes that serving is hard but also realizes that serving benefits the servant even more than those being served. We need to give and serve more than we may think in order to see the fruits of our service.
Lord, help me to have a servant heart and not to put limits on the amount I serve.