[CynicalBear]

John 6:29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.

[CpnHook]

John 6:29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.

And there John is speaking of God's work (singular). Paul in Rom. 2:6-7 is referring to our works (plural). God/singular v. us/plural. They are not speaking to the same thing.

For a hint as to what Paul is addressing, see the parallel phrasing "God will render according to works" by Jesus at Matt. 16:27 and the elaboration on that point at Matt. 25:31ff.