So if you have not been trustworthy in handling worldly wealth, who will trust you with true riches? (NIV)
Therefore if you have not been faithful in the [case of] unrighteous mammon (deceitful riches, money, possessions), who will entrust to you the true riches? (AMP)
If therefore ye have not been faithful in the unrighteous mammon, who will commit to your trust the true riches? (KJV)