Proverbs 3:5-6 tells us: Trust in the LORD with all your heart, And lean not on your own understanding; In all your ways acknowledge Him, And He shall direct your paths.
In our 5 1/2 years in Mexico, we have seen several missionary families come and go, often with little or no fruit. Meanwhile, we had 19 kids on the church van last Sunday.
Common sense says that a missionary should have nothing to do with our church's children's ministry. It will never become self-supporting, and it will never grow into a successful church. So it makes sense that over the years, as I have often asked missionaries to help, they do not. Common sense tells them that it is a bad idea. And then they go away empty-handed, while the children's ministry continues to thrive.
You have to learn to trust GOD, not your own understanding. God's ways are past finding out, and if He is doing something, then that's where you want to be.