"...God is love." (1 John 4:8)
I’m not contradicting John here. God is love, but not all love is God. The two are not exclusively equal. For instance, Jesus is God; but is God only Jesus? No, He’s Father, Son, and Holy Spirit. And He’s not only love; He’s light (1Jno. 1:5). He’s merciful (Psl. 116:5) and faithful (1Cor. 1:9); but He’s also a consuming fire (Heb.12:29), and a judge (Psl.75:7). God’s love is not the same as ours any more than his hate is like our hate. That’s why we cannot assume purity for either one.
I laid this premise in order to put forward this claim: There is not one love; there are two: biblical and non-biblical. There is love that mirrors the love of God as described in His Word, and there is love that bastardizes the very word. There’s love that shares its wealth with "poor saints" (Rom. 15:26), and those who have fallen into hard times (Luke 10). But on the other hand, there are some whose sorrows in life stem from their inordinate love of money, which the Bible calls the very "root of all evil" (1Tim. 6:10). These two opposite codes of conduct are driven by the same motivation: love. But one is godly and the other is devilish.
No, there is not “one love.”
In addition, would any thinking person equate the love of Christ and His Church as pictured by the union of a godly man and woman in holy matrimony (Eph. 5) with the fornication practiced today among (some) believers and non-believers alike? Or does the fact that the fornication involves a monogamous relationship (for now) make the sin less sinful? No, God hasn’t changed His mind about either adultery or fornication. There are no “extenuating circumstances.” I don't say some of these relationships are not loving ones; I only say the “love” has nothing to do with the God of the Bible (1Cor. 6:18; 7:2; 10:8).
All love does not come from God any more than all light comes from the sun. Some of it is artificial and manufactured…in both cases.
God is love, and God is Holy; and only love that is holy is of God.