And he shall go before Him in the spirit and power of Elias, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord. – Luke 1:17
In those days came John the Baptist, preaching in the wilderness of Judaea, And saying, Repent ye: for the kingdom of heaven is at hand. – Matthew 3:1, 2
John cried, “Repent ye: for the kingdom of heaven is at hand,” that is to say, he put a pressure of presentness upon the people. A brother, who is an eminent preacher, but who uses rather long words, was explaining to me the benefit of the preaching of Mr. Fullerton and Mr. Smith in his place of worship. He said, “I do not know exactly why these brethren were the means of the conversion of many in my place whom I had never reached, but I perceived that they had the power to precipitate decision.” It sounded rather strange, but when I thought it over a little while, I rather liked the expression, “the power to precipitate decision.” That is the power that leads men to make up their minds, and say “Yes,” or “No,” to feel that the decision has to be made at once, and that the putting off of it is impossible because it would be a kind of insanity. Now that is the meaning of what John said, “The kingdom of heaven is at hand! Repent ye! He is coming who wields the axe of divine Justice; bear fruit, or else be cut down. He is coming who uses the great winnowing fan; be the true wheat, or else be blown away.” He put the truth so pointedly, and so earnestly, that he did by that means make ready “a people prepared for the Lord.”~ C.H. Spurgeon
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2404.cfm