4 But he will be punished for the sicknesses of our souls;

he will endure great pain for us.

But we will think that he is being punished by God,

afflicted/punished for his own sins.

5 But his body will be bruised because of the evil things that we did,

wounded because of our sins.

He will be beaten in order that things will go well for our souls;

and because he will be whipped, our souls can be healed.