The field is the world; the good seed are the children of the kingdom… – Matthew 13:38 

The sower soweth the word. – Mark 4:14

In one sense, the Christian is the seed; in another, he is a Sower. In one sense, he is a seed, sown by God, which is to grow, and ripen, and germinate, till the great harvest time. In another sense, every Christian is a Sower sent into the world to sow good seed and to sow good seed only. I do not say that Christian men never sow any other seed than good seed. Sometimes, in unguarded moments, they take garlic into their hands instead of wheat; and we may sow tares instead of corn. Christians sometimes make mistakes, and God sometimes suffers His people to fall, so that they sow sins; but the Christian never reaps his sins; Christ reaps them for him. He often has to have a decoction made of the bitter leaves of sin, but he never reaps the fruit of it. Christ has borne the punishment. Yet bear in mind, if you and I sin against God, God will take our sin, and He will get an essence from it that will be bitter to our taste though He does not make us eat the fruits, yet still He will make us grieve and sorrow over our sins. But the Christian, as I have said, should be employed in sowing good seed; and doing so, he shall have a glorious harvest.

In some sense or other, the Christian must be sowing seed. If God calls him to the ministry, he is a seed Sower; if God calls him to the Sabbath-school, he is a seed Sower; whatever his office, he is a Sower of seed. I sow seed broadcast all over this immense field; I cannot tell where my seed goes…I hope there are many who are like the good ground that God has prepared, and when I scatter the seed abroad, it fails on good ground, and brings forth fruit to an abundant harvest. Ah! the minister has a joyful harvest, even in this world, when he sees souls converted…What a joyful harvest it is when God gives us converted ones by tens and hundreds and adds to His church abundantly such as shall be saved! – C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2896.cfm