Giving is a little bit tricky. Because, in reality, we can only give what we have been given. If the sower is not given the seed in the first place, then he has nothing of value to sow in the fields (and the lives) to which he has been given. Luckily, we are given the promise that if we are open and attentive to receiving it, there is One who is able and willing to supply, and even increase, this seed.
The problem is that, oftentimes, we try so hard to give that which we do not possess. And when we do this, abundance simply will not happen. We cannot produce abundance (an enlarged harvest of righteousness) on our own, no matter how hard we try. We can only give--fully and freely--that which we have been given. So it seems kind of important that we know exactly what that is. For this seed wasn't given to us to hoard for ourselves, but to be scattered abroad in the fields of this world, that it might produce a harvest of righteousness.
O Lord, help me to learn to give fully and freely that which I have to give, and to stop trying so hard to give that which I don't.