The Spiritual Power of Relationships
Don’t be teamed with those who do not love the Lord, for what do the people of God have in common with the people of sin? How can light live with darkness? And what harmony can there be between Christ and the devil? How can a Christian be a partner with one who doesn’t believe? And what union can there be between God’s temple and idols? For you are God’s temple, the home of the living God, and God has said of you, “I will live in them and walk among them, and I will be their God and they shall be My people.” That is why the Lord has said, “Leave them; separate yourselves from them; don’t touch their filthy things, and I will welcome you and be a Father to you, and you will be my sons and daughters, 2 Corinthians 6:14–18 (TLB).
(Escaping From the Dragon's Jaws, p 51)