And how shall they preach, except they be sent? as it is written, How beautiful are the feet of them that preach the gospel of peace, and bring glad tidings of good things! – Romans 10:15

Beloved, the greatest help that the gospel brings is help to the soul. Ah, Christian men, ye know what this means: your brothers and sisters are this day wandering blindfold, they know not whither. Ye know, for the Bible tells you that they are wending their weary way down to the gulf of black despair! Oh does not your heart desire that the blind eye should be opened, that the misguided should be directed on the path to heaven: would not your pity desire to snatch the fire brand from the flame? Do you not anxiously seek to know how you can lead the vicious to virtue, and the virtuous to the righteousness that is in Jesus Christ? Have you no desire to see God’s elect ingathered, to see them washed, and sanctified, and perfected? Remember this is to be, and since it is to be it is certain that ye must send the gospel far and wide, for by no other means can God’s elect be gathered home. How can they believe without a preacher? How can they preach except they be sent? The gospel must go throughout all lands, that the elect may be gathered home, and the Messiah’s kingdom come. Oh! ye who love the souls of men, is it to you an awful thought that hell’s caverns are filling; is it a dreary thing to you to see the broad road so crowded with its many travelers? You are longing and wishing that the narrow way might have more pilgrims, I beseech you, then, look to it, that by every mean. and by all means ye aid the preaching of the gospel of Jesus; for it is the help for which the earth calls, and the help which you must render to it. Come over and help us by preaching Christ’s holy gospel. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0189.cfm