Timothy is exhorted by Paul to “do the work of an evangelist.” And work it is, as Paul knew well. The Scripture uses the imagery of sowing seed and reaping a harvest. The picture given in Scripture is not surprisingly an accurate one, and a labor-intensive one.
Sowing seed takes lots of work and lots of time. Further, we are never guaranteed a harvest. The Spirit blows where it wills (Jn. 3:8), though He does use means. We must be faithful to sow and cultivate all the while remembering that God brings the growth (1 Cor. 3:6-7). We must labor on even when there is no sign of life. We can rest assured that the gospel is the power to salvation and if we are faithful to sow gospel seed a harvest should come. We must always remember that the seed we sow, the only one that can bring new life, is “the living and abiding word of God” (1 Peter 1:23). In the book of Acts, we see that the Word, when “planted,” continued to increase and prevail mightily. It is only when the word of truth, the gospel, is proclaimed that there is fruit and growth (cf. Col. 1:5-6).
We would do well to remember many of the prophets’ experience and realize sometimes the seasons are long and at times we may see droughts. In these seasons, when there seems to be no life, we must remind ourselves that God’s Word will not return to Him void but it shall accomplish its purpose (Is. 55:10-11). Though, sometimes God uses His Word to harden (cf. Is. 6:9-10; Matt. 13;14-15; Acts 28:26-27) we must continue to be faithful to go to the highways and byways and compel people to come to Him (Lk. 14:23).
We have a difficult task, ye impossible. Hear Spurgeon in The Soul Winner:
“We are sent to say to blind eyes, ‘See,’ To deaf ears, ‘Hear,’ to dead hearts, ‘Live,’ and even to Lazarus rotting in that grave, ‘Lazarus, come forth’ (John 11:43). Dare we do this? We will be wise to begin with the conviction that we are utterly powerless for this unless our Master has sent us and is with us. But if He who sent us is with us, ‘all things are possible to him that believeth’ (Mark 9:23).”
 C.H. Spurgeon, The Soul Winner (New Kingston, PA: Whitaker House, 1995), 157.