
Shall we say that the flowers on the mountain side are wasted because no human eye admires them, or that the songs of birds in the forests are lost on the air because they regale not the ears of men!
God is sovereign and orders His providences accordingly. Unto one He opens doors, unto another He closes them, and to His good pleasure we are called upon to submit. Some streams He replenishes, but others are suffered to dry up: thus it is in His dealings with His people—by providing or withholding favorable openings for them to be of spiritual help to their fellows.
It is therefore a great mistake to measure our growth in grace and our bringing forth of good fruit by the largeness or smallness of our opportunities of doing good.
Some have larger opportunities when young than when they become older, yet if the hearts of the latter are right, God accepts the will for the deed. Some that have the most grace are stationed in isolated places and are largely unknown to their fellow Christians, yet the eye of God sees them.
A.W. Pink. The Sovereignty of God.