A preacher must plead & plead & do more pleading...

Learn from the Prince of Preachers on pleading with sinners to come to Christ for salvation:

Oh! my dear hearers, my beloved hearers, I cannot bring you to Christ. Christ has brought some of you himself, but I cannot bring you to Christ. How often have I tried to do it! I have tried to preach my Saviour's love, and this day I have preached my Father's wrath; but I feel I cannot bring you to Christ. I may preach God's law; but that will not affright you, unless God sends it home to your heart; I may preach my Saviour's love, but that will not woo you, unless my Father draw you. I am sometimes tempted to wish that I could draw you myself—that I could save you. Sure, if I could, ye should soon be saved! But ah! remember, your minister can do but little; he can do nothing else but preach to you. Do pray that God would bless that little, I beseech you, ye who can pray. If I could do more, I would do it; but it is very little I can do for a sinner's salvation. Do, I beseech you, my dear people, pray to God to bless the feeble means that I use. It is his work and his salvation; but he can do it. O poor trembling sinner, dost thou now weep? Then come to Christ! O poor haggard sinner, haggard in thy soul! come to Christ! O poor sin-bitten sinner! look to Christ! O poor worthless sinner! come to Christ! O poor trembling, fearing, hungering, thirsting sinner! come to Christ! "Ho! everyone that thirsteth, come ye to the waters; and he that hath no money, come, buy wine and milk; yea, come buy wine and milk, without money and without price." Come! Come! Come! God help you to come! for Jesus Christ's sake. Amen.

—Charles Spurgeon, sermon on Psalm 51:4: "Unimpeachable Justice"