Strong G102 ἀδύνατος adunatos · unable

Romans

1. Romans 8:3
   For what the law could not do, in that it was weak through the flesh, God sending his own Son in the likeness of sinful flesh, and for sin, condemned sin in the flesh:
2. Romans 15:1
   We then that are strong ought to bear the infirmities of the weak, and not to please ourselves.