do your job — and let God handle the results...
From Mr. Spurgeon:
“The duty of the Church is not to be measured by her success. It is as much the minister’s duty to preach the gospel in adverse times as in propitious seasons. We are not to think, if God withholds the dew, that we are to withhold the plough. We are not to imagine that, if unfruitful seasons come, we are therefore to cease from sowing our seed. Our business is with act, not with result. The church has to do her duty, even though that duty should bring her no present reward.”