Here is the entire passage from which this verse is taken (2 Cor -18): 14 Do not be mismatched with unbelievers.
For what partnership is there between righteousness and lawlessness? 16 What agreement has the temple of God with idols?
But that freedom does not mean, Paul contends, that we are not compelled by love of both God and neighbor.
So, it might, indeed, have some practical ethical application in the case of a Christian dating or marrying a non-Christian. But it is a matter of allowing God to be God, and recognizing that when we are his people, his sons and daughters (2 Cor ), that means we are in a relationship of love that constrains our freedom for the sake of that love (1 Cor 13).
This concept of boundaries and order in terms of everyday living was a good way to illustrate the ethical demands of relationship with God without resorting to legalism.
A second major problem that Paul is addressing in both Corinthian letters is the problem of spiritual pride that had led some in the community to pervert Paul's teaching about spiritual freedom.
The reference to temples and idols suggests that Paul is still addressing the Corinthians' tendency to try to blend the worship of God with the activities that went on the pagan temples.