If thou seek Him, He will be found of thee.”- 1Chronicles  28:9

Although this was addressed to Solomon, it may, without any violence to truth, be addressed to every unconverted person here present, for there are a great many texts of Scripture of a similar import which apply to all ungodly ones, such, for instance, as that, “Seek ye the Lord while He may be found; call ye upon Him while He is near.” And that other, “He that seeketh findeth; to him that knocketh, it shall be opened.” I should like to go round, if it were possible, and say to every hearer here, as I put my hand upon his shoulder, “If thou seek thy God, He will be found of thee”-even of thee. May I ask you to take it as spoken to each individual-not to your neighbours, not to one who is better or worse than yourselves, but to you? You, young man, and you of riper years, you of all ages, classes and sexes, “If thou seek Him, He will be found of thee.” I know that those who think at all about religion, and do not understand it, are very apt to conceive that there is something wonderfully mysterious about it. That a man should follow it, and may perhaps attain the blessing of it towards the end of life, or on a dying bed, though some conceive that then nobody is quite sure that he is saved, unless it is some extraordinarily good man. Oh! is not this strange, that with a book so plain as this, and with a gospel preached by so many in these days, yet the mass of mankind are in a cloud and a fog about the blessed revelation of God? Jesus Christ is salvation. He is to be had-He is to be had now. You may know you have Him. You may be now saved-completely saved, and live in the full enjoyment of that knowledge. “If thou seek Him, He will be found of thee.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3490.cfm