And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God. – 1 Corinthians 6:11

When we get at the work our need remains; we long to see the people saved; but in order to do that, they must be born again, and this we cannot accomplish ourselves. Change a stone into flesh! Try that at home with a piece of stone on your table, before you attempt it with the hard hearts of men. Create a soul between the ribs of death! Try that in a charnel-house before you pretend to create within a sinner, dead in sin, the spiritual life. Of regeneration we may say, “This is the finger of God.” If our religion be not supernatural, it is a delusion. If the Holy Ghost be not with you, you are like Jannes and Jambres, attempting to work a miracle without Jehovah’s aid; and you will be baffled, and detected for an impostor. You will fail, like the seven sons of one Sceva, a Jew, who tried to cast out devils: the devils do not know you; they would know Jesus; they would know the Holy Spirit; but at your idle efforts they mockingly laugh. Only those people who never do any spiritual work talk about what they can accomplish. When you get into the sacred service, you find how great your weakness is; you feel out of your depth when you come to deal with souls, and you must have the Holy Spirit or fail…We never personally go a step towards heaven, and we never lead another one inch on the way, apart from the Holy Ghost…

“Come, Holy Spirit, heavenly Dove,
With all Thy quickening powers.”

or else all our service for the Lord is in vain. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2218.cfm