Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you… – 2 Corinthians 6:17

Keep up a careful separateness from the works of darkness that are going on all around us. If it seems dark to you, gather up your skirts, and gird up your loins. The more sin abounds in the world, the more ought the Church of God to seek after the strictest holiness. If ever there was an age that wanted back again the sternest form of Puritanism, it is this age…O Christian people, if you could but know, as the most of you ought not to know, how bad this world is, you would not begin to talk about its wonderful improvements, or to question the doctrine of human depravity. We are going on, according to some teachers, by “evolution” into something; if I might prognosticate what it is, I should say that it is into devils that many men are being evolved. They are going down, down, down, save where eternal grace is begetting in the heart of men a higher and better and nobler nature, which must bear its protest against the ignorance or hypocrisy which this day talks about the improvements of our civilization, and the progress that we are making towards God. “Until the day break, and the shadows flee away,” keep yourselves to your Lord, and hear you this voice sounding through the darkness, the voice of a wisdom that sees more than you see, “Come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you, and will be a Father unto you, and ye shall be my sons and daughters, said the Lord Almighty.” “Until the day break, and the shadows flee away,” lift your hands to heaven, and pledge yourselves to walk a separated pilgrim life, until He cometh before whose face heaven and earth shall flee away. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2477.cfm