Yes, I think it can often be harmful to think in terms of my reward - word searches on "reward" not withstanding.
That reward being Heaven in this case. The harm comes in the "believe and receive" variety of theology. It can too easily become believe to receive. We only need to read popular literature or tune in to tv evangelist to see this in action.
I don't see a lot of difference between this and a works-based theology.
In terms perhaps a Calvinist could appreciate, it can lead to a view that God is not sovereign. That I can do something, choose something, believe something and then God has to reward me.
To focus on our reward, IMHO, can be harmful.
Doesn't have to be, I just can't, personally, see how it would not lead or at least point one's attention in that direction.
thanks for your reply.
"Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and that your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you." -- John 15:16
Not things of silver and gold, but things of grace -- salvation, repentance, gratitude, joy.