we are the temple

The new NIV nails it...again (they replaced "sinful nature" with "flesh," etc)

In  1 Cor 3:16-17, however, Paul is speaking of the corporate body, the church.  The three appearances of “you” are plural:

Do you not know that you (plural) are a temple of God and the Spirit of God dwells among you (plural)?  If anyone destroys the temple of God, God will destroy him.  For the temple of God is holy, and that is what you (plural) are.

The NASB and ESV note this in the margin, but the translations don’t capture Paul’s sense and leave the impression that it’s singular.

The updated NIV, however, nails it:

Don’t you know that you yourselves are God’s temple and that God’s Spirit dwells in your midst?  If anyone destroys God’s temple, God will destroy that person; for God’s temple is sacred, and you together are that temple.  Tim Gombis