If you do good things, without boasting, for Jesus’ sake, those works will be rewarded at the BEMA seat during your coronation in Heaven. There are 7 different crowns. Your work for Christ's sake will determine which crowns you will have earned. The ones we will lay at Christ's feet.
If you do good things thinking that your "righteousness" will earn you a spot in Heaven, then your work is like filthy rags. It diminishes Christ's work on the cross, and means you think Christ was remiss in our redemption, and He needs our help.
You simply cannot work your way into Heaven. Here is why:
Filthy rags ~ In Hebrew, is referring to used menstrual pads. If a woman bleeds it means there is no fruit in her womb that month.
Filthy rags mean our attempt to secure our own salvation is fruitless...