I have blotted out, as a thick cloud, thy transgressions, and, as a cloud, thy sins: return unto Me; for I have redeemed thee. – Isaiah 44:22

There are times when our unbelief makes new clouds and threatens new storms. Though our sin was all forgiven at the very first, and when we were first washed we were clean every whit, so that we needed not ever afterwards to wash again, except to wash our feet, yet unbelief can revive the memories of sin, and defile the conscience with dead works, and so it can create clouds between us and God: nevertheless, when our Lord reveals Himself He blotteth out our sins like a cloud, and like a thick cloud our transgressions, and again we return unto Him and rejoice in Him. We need not come under these returning glooms, and we ought not to do so; but should it happen to us that we come under a cloud, it will be a blessed thing to look up and remember that the Lord can clear the skies in a moment and turn our dreariest shades into the brightness of the morning.

The day will come when the gospel shall have been preached for the last time, when the chosen of God shall have been all gathered out from among men, and the dispensation shall be fulfilled. Then shall all the saints rise to glory at the call of God. The elect multitude shall be all there, every one according to the purpose of the Father, every one according to the redemption of the Son, every one according to the calling of the Spirit, all there; upon their faces there shall be no spot nor wrinkle, and on their garments no stain nor defilement, for they are without fault before the throne of God. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1240.cfm