I’m not sure this is always true. I have had situations where the more merciful and forgiving I was to someone, the more they made me a target. It’s a nice thought, though, and I know it works in at least some cases:
Let’s face it, there are some people who are never going to change apart from a miracle. But there is still something we can do about it. In Romans 1 we read about those who can’t receive the truth of God…they are unthankful, unmerciful, and unforgiving. (Rom 1:31) In contrast to these unthankful, unmerciful, and unforgiving people, the way to reach them is to be thankful, merciful, and forgiving toward them! And it works. In fact, the more you lift up others who don’t deserve it, the less of a target you become, especially when you start to spend and be spent with great pleasure.
Making ready a people prepared for the Lord.