I will be as the dew unto Israel: he shall grow as the lily, and cast forth his roots as Lebanon. – Hosea 14:5

When did the dew tell us that it was about to fall? Who ever heard the footsteps of the dew coming down upon the meadow grass? Who ever knew when it was descending? We see it when it has fallen; but who saw it come? And so with Christianity: it is very often imperceptible in its operations. True it is sometimes like the rattling hail, pelting on the windows: the sinner knows when it comes by stormy convictions, and by troubled feelings within, but quite as often the work of grace in man’s heart is like the “still small voice,” which few hear, and of which even the man himself is partially unconscious, not as to its operation perhaps, but as to its nature, feeling that there is a something in his heart, though not positively sure that it really comes from God. Christian! despise not spiritual things, because thou hearest not a sound therewith. Much that God doeth, He doeth in silence. There is a plant which bursts with the sound of a trumpet; but full many a flower called beautiful, openeth in silence, and no man heareth the sound thereof. There be some Christians who seem bound to make a noise in the world, they were made for that purpose; but there be far more who have to blush unseen whose glory it is not to “waste their sweetness,” though to perfume “the desert air,” and to make it sing and blossom like the garden of the Lord. Beloved, you may perhaps fancy that you have not grace, because it has not come upon you in terrible excitements and in awful convictions. I beseech you, do not distrust the power of grace, because it has stolen imperceptibly into your hearts. Mark the promise: “I will be as the dew unto Israel.” ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/0342.cfm